Subtract. -( 20a⁴ - 16a²) - ( -8a⁴ - 13a²) A) 25a⁶ B) 12a⁴ - 29a² C) 28a⁴ - 3a² D) 28a⁴ - 29a²

Question

Quizplus · Accepted Answer

First, simplify the expression inside each parenthesis: (20a - 16a) = 4a for P14 and (1a - 13a) = -12a for P12. Then, subtract the second parenthesis, which is effectively adding due to the double negative, resulting in (4a + 8a) = 12a for P14 and (-12a + 13a) = 1a for P12. Thus, the correct subtraction gives us 28a for P14 and -3a for P12.

Subtract. -( 20a4 - 16a2) - ( -8a4 - 13a2)

Subtract. -( 20a⁴ - 16a²) - ( -8a⁴ - 13a²)