A=1/2(b to the 2nd power + b to the first power) solve for b to the second power

Answer 1

A=1/2(b to the 2nd power + b to the first power) solve for b to the second power

A= 1/2 (b² + b)

2A = b² + b .....multiply both sides by 2

2A-b = b² ....subtract b from both sides........you have...... b² = 2A-b....What did you get?