(4) (15x² - 8x - 10) = (5x - 1)
Answers
Step-by-step explanation:
The first term is, 15x2 its coefficient is 15 .
The middle term is, +8x its coefficient is 8 .
The last term, "the constant", is -8
Step-1 : Multiply the coefficient of the first term by the constant 15 • -8 = -120
Step-2 : Find two factors of -120 whose sum equals the coefficient of the middle term, which is 8 .
-120 + 1 = -119 -60 + 2 = -58 -40 + 3 = -37 -30 + 4 = -26 -24 + 5 = -19 -20 + 6 = -14 -15 + 8 = -7 -12 + 10 = -2 -10 + 12 = 2 -8 + 15 = 7 -6 + 20 = 14 -5 + 24 = 19 -4 + 30 = 26 -3 + 40 = 37 -2 + 60 = 58 -1 + 120 = 119