The roots of $7x^2 + x - 5 = 0$ are a and b. Compute $(a - 4)(b - 4).$
PLS HELP
Using the Quadratic Formula with a = 7 b = 1 c = -5
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
roots are x=0.776739 x=−0.919596
( .776739 -4)(-.919596 - 4 ) = .....................