Question

Math homework geometry please help

Answer 1

Answer:

A

Step-by-step explanation:

The theorem we use for this is

$a(a + b) = c(c + d)$

Solve for d.

$a(a + b) = c { }^{2} + cd$

$a(a + b) - {c}^{2}$

$\frac{a(a + b) - {c}^{2} }{c}$

A is the answer