How do you simplify the expression $(5x+1)^2 +(3x-5)^2$ ?

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Answer 1 · 2018-06-08T14:00:45

$34x^2-20x+26$

Using
$(a+b)^2=a^2+2ab+b^2$
$(a-b)^2=a^2-2ab+b^2$
we get
$25x^2+10x+1+9x^2-30x+25$
$34x^2-20x+26$

How do you simplify the expression (5x+1)^2 +(3x-5)^2(5x+1)^2 +(3x-5)^2?