Question

9x²-(5x-3)2 =(1+4х) (1-4х)
срочно​

Answer 1

$\displaystyle\bf\\9x^{2} -(5x-3)^{2} =(1-4x)(1+4x)\\\\9x^{2} -(25x^{2} -30x+9)=1^{2} -(4x)^{2} \\\\9x^{2} -25x^{2} +30x-9=1-16x^{2} \\\\-16x^{2} +30x+16x^{2} =1+9\\\\30x=10\\\\x=\frac{1}{3}$