Which expression is the factorization of x^2 + 10x + 21?
2 answers:
Answer:
(x+3)(x+7)
Step-by-step explanation:
Answer:
(x + 3)(x + 7).
Step-by-step explanation:
x^2 + 10x + 21.
You need 2 numbers whose product is the last number in the function (+21) and whose sum is the coefficient of x (+10).
These are + 3 and + 7, so the factors are:
(x + 3)(x + 7).
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Answer:
The top right
Step-by-step explanation:
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The answer is 14
2.2×10=22
22-8 is 14
Answer: 18
<u>Step-by-step explanation:</u>
3² * 3ⁿ = 3²⁰
3⁽²⁺ⁿ⁾ = 3²⁰
2 + n = 20
<u> -2 </u> <u> -2</u>
n = 18
Answer:
(A) x=-28
Step-by-step explanation:
237 -6x = 405 [note that 6*(-x) is (-6x)]
-6x = 168 [subtract 237 from both sides]
x = -28 [divide both sides by (-6)]
