7(a−3+4b)
distribute
7a-7*3+7*4b
7a-21+28b
Answer:
i belive it is either 3 students or 8 cuz the numbers confued
me
The answer is 9x² - 6x - 1
Step-by-step explanation:
∵ (6x³ + x² - 10x - 1) - (6x³ - 8x² - 4x) =
0 + 9x² - 6x - 1 = 9x² - 6x - 1
