(3x^2-5x+7)+(x^2+2x-3)=

Simple and best practice solution for (3x^2-5x+7)+(x^2+2x-3)= 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 (3x^2-5x+7)+(x^2+2x-3)= equation:


Simplifying
(3x2 + -5x + 7) + (x2 + 2x + -3) = 0

Reorder the terms:
(7 + -5x + 3x2) + (x2 + 2x + -3) = 0

Remove parenthesis around (7 + -5x + 3x2)
7 + -5x + 3x2 + (x2 + 2x + -3) = 0

Reorder the terms:
7 + -5x + 3x2 + (-3 + 2x + x2) = 0

Remove parenthesis around (-3 + 2x + x2)
7 + -5x + 3x2 + -3 + 2x + x2 = 0

Reorder the terms:
7 + -3 + -5x + 2x + 3x2 + x2 = 0

Combine like terms: 7 + -3 = 4
4 + -5x + 2x + 3x2 + x2 = 0

Combine like terms: -5x + 2x = -3x
4 + -3x + 3x2 + x2 = 0

Combine like terms: 3x2 + x2 = 4x2
4 + -3x + 4x2 = 0

Solving
4 + -3x + 4x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
1 + -0.75x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -0.75x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + -0.75x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -0.75x + x2 = 0 + -1
-0.75x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
-0.75x + x2 = -1

The x term is -0.75x.  Take half its coefficient (-0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
-0.75x + 0.140625 + x2 = -1 + 0.140625

Reorder the terms:
0.140625 + -0.75x + x2 = -1 + 0.140625

Combine like terms: -1 + 0.140625 = -0.859375
0.140625 + -0.75x + x2 = -0.859375

Factor a perfect square on the left side:
(x + -0.375)(x + -0.375) = -0.859375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| A(12)=47+12 | | 14(2y/7) | | -6n+7=4-8n+5n | | 70=12b | | 7v-3v+7=7 | | T^2=2t+6 | | x^2+10x+5=50 | | -15+9+(-2)= | | 5-3v-15=-7 | | -8-5n=8-3n | | -8(v-3)=24+2v | | 34x+2=34 | | 4/p=100 | | n/84-n=2/5 | | -15+9+(2)= | | -3k-3(2k+4)=5(k-8) | | -15+9+(-22)= | | -1/2(-7/5) | | -6(3-2k)=14+8k | | 3(3y+2)=2-2(y-2) | | 4*x^2*(1-x^2)=0.1 | | -10+49x=71 | | M(m+5)=6 | | -4y=y-5 | | 14k-47=2(7k-1) | | -4a+2=(-8a)-14 | | 3/8(-1/3) | | 1x-5=95 | | lnx=0.439 | | 3z=6z-12 | | -3-4x=-103 | | .2x-1.8=4.2 |

Equations solver categories