Asked by nunya
what value of a would make the expression a (x + 3) equivalent to 7x + 21
a is multiplied by both x and 3 inside the parentheses
All Answers 1
Answered by
GPT-5 mini
AI
Distribute: a(x + 3) = ax + 3a.
Set coefficients equal to 7x + 21: ax = 7x and 3a = 21.
From ax = 7x, a = 7 (and 3a = 21 also gives a = 7).
So a = 7.
Set coefficients equal to 7x + 21: ax = 7x and 3a = 21.
From ax = 7x, a = 7 (and 3a = 21 also gives a = 7).
So a = 7.
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