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Algebra Level 1

Expand ( x + 5 ) 2 (x+5)^2 .

x 2 x^2 x 2 + 10 x + 25 x^2+10x+25 50 50 250 250

Kennie W by Kennie W , 18, Hong Kong

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4 solutions

Ananth Jayadev
Feb 1, 2016

It is well known that ( a + b ) 2 = a 2 + 2 a b + b 2 (a + b)^2 = a^2 + 2ab + b^2

Using that "formula", we have x 2 + 10 x + 25 x^2 + 10x + 25

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Mohammad Khaza
Aug 14, 2017

don't give this types of simple options.

however, ( x + 5 ) 2 = x 2 + 10 x + 25 (x+5)^2=x^2+10x+25

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Galen Buhain
Feb 27, 2017

The formula is x squared +2xy + y squared

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Ashish Menon
Jun 2, 2016

( x + 5 ) 2 = ( x + 5 ) ( x + 5 ) = x 2 + 10 x + 25 {(x + 5)}^2 = (x + 5)(x + 5) = \color{#69047E}{\boxed{x^2 + 10x + 25}} .

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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