How do you multiply (2x+5)^{3}?

zei3s4pf2l

zei3s4pf2l

Answered question

2022-02-11

How do you multiply (2x+5)3?

Answer & Explanation

Ethen Welch

Ethen Welch

Beginner2022-02-12Added 11 answers

If there is (a+b)(c+d) then:
(a+b)(c+d)=a*c+a*d+b*c+b*d
(2x+5)3=(2x+5)(2x+5)(2x+5)
=[4x2+10x+10x+25](2x+5)
If there is (a+b+c)(d+e) then:
(a+b+c)(d+e)=ad+ae+bd+be+cd+ce
=(4x2+20x+25)(2x+5)
=8x3+20x2+40x2+100x+50x+125
The answer is:
=8x3+60x2+150x+15

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