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04.08.2019 •
Mathematics
Which of the following best describes the expression 7(y + 5)? a the sum of two constant factors seven and five plus a variable bthe product of two constant factors seven and five plus a variable c the sum of a constant factor of five and a factor with the product of two terms d the product of a constant factor of seven and a factor with the sum of two terms
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Ответ:
y+5 -sum of two terms
the answer is D
Ответ:
Step 2: (x + 4)(x + 2) = 8
Step-by-step explanation:
x2 + 6x + 8 = 0
x2 + 4x + 2x + 8 = 0
x(x + 4) + 2(x + 4) = 0
(x + 2)(x + 4) = 0