Question

Give the values of a, b, and c needed to write the equation's general form.. (5 + x)(5 - x) = 7. A = 1; B = 0; C = -18. A = 25; B = 0; C = -1. A = -1; B = 0; C = 25

Answer 1

The general form of an equation is $A x^{2} +Bx+C=0$. Solving for  (5+X)(5-X)=7 by multiplying the factors and subtratcting 7 on both sides gives the equation $x^{2} -18=0$, so 
A = 1
B = 0
C = -18