4 years ago

Factor the quadratic by checking factor pairs. -15x2 – 21x + 18 -15x2 – 218 + 19 = -3

Mathematics

1 answer:

d1i1m1o1n [39]4 years ago

3 0

Answer:

-3(x + 2)(5x - 3)

Step-by-step explanation:

-15x² – 21x + 18

-3(5x² + 7x - 6)

-3[5x² + 10x - 3x - 6]

-3[5x(x + 2) - 3(x + 2)]

-3(x + 2)(5x - 3)

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