1 answer:
Answer:
27x +42+ 3x²
Step-by-step explanation:
so im learning this rn in class and what you do is FOIL
So its stands for
First
Outside
Inside
Last
(3x+6)(x+7)
(3x +6)(x +7) -- 3x² (if you have x times x it is x to the second power)
(3x +6)(x+7 ) -- 21x
(3x+6 )(x +7) -- 6x
(3x+6 )(x+7 ) -- 42
Now add 21x and 6x
27x +42+ 3x²
you must have added the 21 and 6 incorrectly.
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