What is (x+7)^2-(x+7)-2 ?

The solution to (x+7)^2-(x+7)-2 is x^2+13x+40

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simplify (x+7)^2-(x+7)-2

simplify

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

x^{2} + 13 x + 40

Solution steps

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

Apply the distributive law:

- (a + b) = - a - b

- (x + 7) = - x - 7

= (x + 7)^{2} - x - 7 - 2

Expand

(x + 7)^{2} : x^{2} + 14 x + 49

= x^{2} + 14 x + 49 - x - 7 - 2

Group like terms

= x^{2} + 14 x - x + 49 - 7 - 2

Add similar elements:

14 x - x = 13 x

= x^{2} + 13 x + 49 - 7 - 2

Subtract the numbers:

49 - 7 - 2 = 40

= x^{2} + 13 x + 40

\frac{3 x ^{3}}{3 x ^{2}}

32 - 72

x^{5} + \frac{1}{x ^{5}}

(8 m + 5) (8 m - 5)

3.5 \cdot 1 0^{4}