Question

Expand the given equation using a^2+b^2
$x {}^{2} +( x + 7) {}^{2}$
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Answer 1

Answer:

Expand the given equation using a^2+b^2

$x {}^{2} +( x + 7) {}^{2}$

Answer 2

Answer:

Step-by-step explanation:

Expansion of (a ± b)2

(a +b)2

= (a + b)(a + b)

= a(a + b) + b(a+ b)

= a2 + ab + ab + b2

= a2 + 2ab + b2.