Mathematics
By using standard formulae, expand the following:
(x+3)(x+5)
Expansions
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Answer
We know that (x+a)(x+b) = x2 + (a + b)x + ab
∴ (x+3)(x+5) = x2 + (3 + 5)x + (3)(5) = x2 + 8x + 15
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By using standard formulae, expand the following:
(x+3)(x+5)
30 Likes
We know that (x+a)(x+b) = x2 + (a + b)x + ab
∴ (x+3)(x+5) = x2 + (3 + 5)x + (3)(5) = x2 + 8x + 15
Answered By
22 Likes