What is the product of the polynomial (7x+7) (x+2)
1 answer:
Answer: 7x^2+21x+14
Step-by-step explanation:
(7x+7)(x+2)
Multiply each term in the first parentheses by each term in the second parentheses (FOIL)
7x×x+7x×2+7x+7×2
↘ ↙
7x×x calculate product
7x^2+7x×2+7x+7×2
↘ ↙
7x×2 calculate product
7x^2+14x+7x+7×2
↘↙
7×2 multiply numbers
7x^2+14x+7x+14
↘ ↙
21x collect like terms
7x^2+21x+14 is your end result.
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Answer:
x^2+x+1
Step-by-step explanation:
(3x^2+4x−1)+(−2x^2−3x+2)
Combine like terms
3x^2-2x^2+4x-3x-1+2
x^2+x+1
When it has the line under the sign that means the dot is closed. For example that is closed because it x is greater than or equal to -1, so if it has a line under the > sign that means the dot is closed
Answer:
y=-2/3x+10.3333333333333334
Step-by-step explanation:
to make it perpendicular 2/3 becomes -2/3
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