Question

7(x-4)^2-3(x+5)^2=4(x+1)(x-1)-2 ayudenme porfavor

Answer 1

$7x^{2}-56x+112-3x^{2}-30x-75= 4x^{2} -4-2\\4x^{2}-86x+37=4x^{2}-6\\4x^{2}-86x+37-4x^{2}+6=0\\-86x+43=0\\x=\frac{43}{86}\\x=\frac{1}{2}$