Please help!!! 2x²-5x-12 (quadratic equations)
2 answers:
Answer:
( 2x +3 ) (x-4 )
Step-by-step explanation:
2x²-5x-12
Factor
( 2x ) (x )
We need to look at the factors of -12
-1 *12 -2 *6 -3*4 -4*3 -6*2 -12*1
What multiplies 2 * 1st factor + the other factor to equal -5
2* -4 +3 = -8+3 =5
so the -4 goes on the outside and the 3 goes on the inside
( 2x +3 ) (x-4 )
Answer:
(2x + 3)(x - 4)
Step-by-step explanation:
2x² - 5x - 12
2x² - 8x + 3x - 12
2x(x - 4) + 3(x - 4)
(2x + 3)(x - 4)
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