Question

For what value of x is the square of the binomial x+1 one hundred and twenty greater than the square of the binomial x-3

Answer 1

Answer:

x = 16

Step-by-step explanation:

(x + 1)² = (x - 3)² + 120

x² + 2x + 1 = x² - 6x + 9 + 120

8x = 128

x = 16