-9x^2=42x+49

Simple and best practice solution for -9x^2=42x+49 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 -9x^2=42x+49 equation:


Simplifying
-9x2 = 42x + 49

Reorder the terms:
-9x2 = 49 + 42x

Solving
-9x2 = 49 + 42x

Solving for variable 'x'.

Reorder the terms:
-49 + -42x + -9x2 = 49 + 42x + -49 + -42x

Reorder the terms:
-49 + -42x + -9x2 = 49 + -49 + 42x + -42x

Combine like terms: 49 + -49 = 0
-49 + -42x + -9x2 = 0 + 42x + -42x
-49 + -42x + -9x2 = 42x + -42x

Combine like terms: 42x + -42x = 0
-49 + -42x + -9x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(49 + 42x + 9x2) = 0

Factor a trinomial.
-1((7 + 3x)(7 + 3x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(7 + 3x)' equal to zero and attempt to solve: Simplifying 7 + 3x = 0 Solving 7 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3x = 0 + -7 3x = 0 + -7 Combine like terms: 0 + -7 = -7 3x = -7 Divide each side by '3'. x = -2.333333333 Simplifying x = -2.333333333

Subproblem 2

Set the factor '(7 + 3x)' equal to zero and attempt to solve: Simplifying 7 + 3x = 0 Solving 7 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3x = 0 + -7 3x = 0 + -7 Combine like terms: 0 + -7 = -7 3x = -7 Divide each side by '3'. x = -2.333333333 Simplifying x = -2.333333333

Solution

x = {-2.333333333, -2.333333333}

See similar equations:

| (3/8).(X/8)=100 | | 48x-45=8 | | 30s-3(2s+8)= | | .33x+16=-8 | | 3x-32=(-7)x+28 | | 3y-34=y+16 | | -2(4x-8)=-8 | | 1500-0.45p=100+p | | 3(v-2)+v=4(v-1)+9 | | 3/8.X/8=100 | | 28-4x=-16 | | 0=-9(g+2) | | 6+4(x+2)=11x | | 4x^2=-9 | | 3n+7=63 | | 27=36 | | 2+6=-42 | | -6x+13+7x=5+x+8 | | 8(n-5)=2(3m-8) | | 3-2x+7=14 | | 1.4x-2.9+x-1.6= | | 9x+8=208 | | .25-.67y=.67-.3y | | 2x+6=9x-5 | | 4y^2-z^2= | | 13x-3y=23 | | -12790=-7625+185x | | 6(2x-5)+4=27 | | -5+10-4=-9 | | 2n+18=22 | | 21+21=28+14 | | 5x+76-76=180-76 |

Equations solver categories