Skip to main content
Solve for x
Tick mark Image
Graph

Similar Problems from Web Search

Share

4-12x+9x^{2}-\left(3x-1\right)\left(3x+1\right)=2
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(2-3x\right)^{2}.
4-12x+9x^{2}-\left(\left(3x\right)^{2}-1\right)=2
Consider \left(3x-1\right)\left(3x+1\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Square 1.
4-12x+9x^{2}-\left(3^{2}x^{2}-1\right)=2
Expand \left(3x\right)^{2}.
4-12x+9x^{2}-\left(9x^{2}-1\right)=2
Calculate 3 to the power of 2 and get 9.
4-12x+9x^{2}-9x^{2}+1=2
To find the opposite of 9x^{2}-1, find the opposite of each term.
4-12x+1=2
Combine 9x^{2} and -9x^{2} to get 0.
5-12x=2
Add 4 and 1 to get 5.
-12x=2-5
Subtract 5 from both sides.
-12x=-3
Subtract 5 from 2 to get -3.
x=\frac{-3}{-12}
Divide both sides by -12.
x=\frac{1}{4}
Reduce the fraction \frac{-3}{-12} to lowest terms by extracting and canceling out -3.