2x^2-7x+9=(x-3)(x+1)+3x

Simple and best practice solution for 2x^2-7x+9=(x-3)(x+1)+3x equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2x^2-7x+9=(x-3)(x+1)+3x equation:


Simplifying
2x2 + -7x + 9 = (x + -3)(x + 1) + 3x

Reorder the terms:
9 + -7x + 2x2 = (x + -3)(x + 1) + 3x

Reorder the terms:
9 + -7x + 2x2 = (-3 + x)(x + 1) + 3x

Reorder the terms:
9 + -7x + 2x2 = (-3 + x)(1 + x) + 3x

Multiply (-3 + x) * (1 + x)
9 + -7x + 2x2 = (-3(1 + x) + x(1 + x)) + 3x
9 + -7x + 2x2 = ((1 * -3 + x * -3) + x(1 + x)) + 3x
9 + -7x + 2x2 = ((-3 + -3x) + x(1 + x)) + 3x
9 + -7x + 2x2 = (-3 + -3x + (1 * x + x * x)) + 3x
9 + -7x + 2x2 = (-3 + -3x + (1x + x2)) + 3x

Combine like terms: -3x + 1x = -2x
9 + -7x + 2x2 = (-3 + -2x + x2) + 3x

Reorder the terms:
9 + -7x + 2x2 = -3 + -2x + 3x + x2

Combine like terms: -2x + 3x = 1x
9 + -7x + 2x2 = -3 + 1x + x2

Solving
9 + -7x + 2x2 = -3 + 1x + x2

Solving for variable 'x'.

Reorder the terms:
9 + 3 + -7x + -1x + 2x2 + -1x2 = -3 + 1x + x2 + 3 + -1x + -1x2

Combine like terms: 9 + 3 = 12
12 + -7x + -1x + 2x2 + -1x2 = -3 + 1x + x2 + 3 + -1x + -1x2

Combine like terms: -7x + -1x = -8x
12 + -8x + 2x2 + -1x2 = -3 + 1x + x2 + 3 + -1x + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
12 + -8x + 1x2 = -3 + 1x + x2 + 3 + -1x + -1x2

Reorder the terms:
12 + -8x + 1x2 = -3 + 3 + 1x + -1x + x2 + -1x2

Combine like terms: -3 + 3 = 0
12 + -8x + 1x2 = 0 + 1x + -1x + x2 + -1x2
12 + -8x + 1x2 = 1x + -1x + x2 + -1x2

Combine like terms: 1x + -1x = 0
12 + -8x + 1x2 = 0 + x2 + -1x2
12 + -8x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
12 + -8x + 1x2 = 0

Factor a trinomial.
(2 + -1x)(6 + -1x) = 0

Subproblem 1

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {2, 6}

See similar equations:

| -3x-x=8 | | 2x-20=3x+50 | | -8x-20=-15x-6 | | -6+7k= | | 6m+19=-5(3-8m) | | g/5+5/6=6 | | 8-4x= | | 5x+7=72 | | x^2-10x-y+28=0 | | 5x-3=x-5 | | 8x-10x+5=-3x-1 | | 4x+7y+5xy=0 | | -6=t+5s | | 7+2z-4=8z+13-4z | | -8(2-9r)=0 | | 4+9x-11x=6x+8 | | 13+6a=3a+1 | | 8(4+p)+2p=38+4p | | 25x^5-49x^3=0 | | 2x^2-31x+16=0 | | 2x^2-31x=16 | | v+12=5 | | 17-3p=11 | | -4x-8=-2x-20 | | 11x-x= | | 12n^2+15n-18=01 | | 10090x-80=-5 | | 12n^2+15n-18=0 | | 3y+x=-4 | | 6(x+2)-2(2x+5)=18 | | 6(x+2)-2(2x+5)=15 | | v-5+4=-2 |

Equations solver categories