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7x+44
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7x+44
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x^{2}+7x+36-x^{2}+8
Consider \left(6-x\right)\left(6+x\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Square 6.
7x+36+8
Combine x^{2} and -x^{2} to get 0.
7x+44
Add 36 and 8 to get 44.
x^{2}+7x+36-x^{2}+8
Consider \left(6-x\right)\left(6+x\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Square 6.
7x+36+8
Combine x^{2} and -x^{2} to get 0.
7x+44
Add 36 and 8 to get 44.
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