F. Reflection
Do this in an A4 bond paper.
Which of these two answers is the correct product of x + 3 and x - 4? Justify your answer.
A. x2 - x - 12
B. x2 + x - 12
Do this in an A4 bond paper.
Which of these two answers is the correct product of x + 3 and x - 4? Justify your answer.
A. x2 - x - 12
B. x2 + x - 12
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Answer:
A. x2 - x - 12
Step-by-step explanation:
(x+3)(x-4)
FOIL Method
Front= (x) (x) =x²
Outer= (x) (-4) = -4x
Inner= (3) (x) = 3x
Last= (3) (-4) = -12
x²-4x+3x-12
Add the terms with the same variable and exponent (-4x+3x= -x)
x²-x-12