Question

Solve. a+1= square root of b+1 solve for b b = a2 + 2a b = a + 2a2 b = 2a2 + a

Answer 1

b = a² + 2a

Explanation:

Given

a + 1 =
`√(b+1)` ← square both sides

(a + 1)² = b + 1 ← expand the left side

a² + 2a + 1 = b + 1 ( subtract 1 from both sides )

a² + 2a = b