step by step expansion (2x+1)(2x+3)(2x+5)
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Answered by
0
Answer:
6x + 9
Step-by-step explanation:
(2x + 1) (2x + 3) (2x + 5)
2x + 2x + 2x + 1+3+5
6x + 9
Answered by
0
Step-by-step explanation:
(2x+1)(2x+3)(2x+5)
(2x+1)(2x+3)
= 2x(2x+3) +1(2x+3)
= 4x^2 + 6x + 2x + 3
= 4x^2 + 8x + 3
(2x+5)(4x^2 + 8x + 3)
= 2x(4x^2) + 2x (8x) + 2x(3) + 5(4x^2) + 5(8x) +5(3)
= 8x^3 + 16x^2 + 6x + 20x^2 + 40x + 15
= 8x^3 + 36x^2 + 46x + 15
hope it helps you
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