foil method

Question

multiply using the foil method

112=(x+4)(2x+6)

Answer 1

2x² + 6x + 8x + 24 = 112

2x² + 14x + 24 = 112

 

If you need to solve this, 

 

2x² + 14x - 88 = 0

x² + 7x - 44 = 0

(x - 4)(x + 11) = 0

x = 4, -11