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Help for maths SUM

Thread starter aliatifkhan777
Start date Nov 24, 2011

Nov 24, 2011

#1

aliatifkhan777

I know it's dumb to ask this, but i forgot how to expand -__-

please explain me this

(3x+y) Squared

Nov 24, 2011

#2

A

anahita16

(3x)^2 + 2(3x)

+ y^2 = 9x^2 + 6xy + y^2

Nov 24, 2011

#3

Silent Hunter

a^2 + 2ab + b^2 = (a + b)^2

use the above formula

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