Asked by Samantha
18x^2 minus x minus 4 simplified.
Answers
Answered by
Henry
18x^2 - x - 4
Factor using A*C Method:
A * C = 18 * -4 = -72 = 8 * -9,
18X^2 + (8x-9x) - 4,
Group the 4 terms into factorable
pairs:
(18x^2 - 9x) + (8x - 4)
Factor 9x from the 1st pair and 4
from the 2nd pair:
9x(2x - 1) + 4(2x - 1),
Factor (2x - 1) from each term:
(2x - 1) (9x + 4).
8
Factor using A*C Method:
A * C = 18 * -4 = -72 = 8 * -9,
18X^2 + (8x-9x) - 4,
Group the 4 terms into factorable
pairs:
(18x^2 - 9x) + (8x - 4)
Factor 9x from the 1st pair and 4
from the 2nd pair:
9x(2x - 1) + 4(2x - 1),
Factor (2x - 1) from each term:
(2x - 1) (9x + 4).
8
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