What is (x+6)(x-6)-(x-6)^2 ?

The solution to (x+6)(x-6)-(x-6)^2 is 12x-72

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simplify (x+6)(x-6)-(x-6)^2

simplify

(x + 6) (x - 6) - (x - 6)^{2}

12 x - 72

Solution steps

(x + 6) (x - 6) - (x - 6)^{2}

Expand

(x + 6) (x - 6) : x^{2} - 36

= x^{2} - 36 - (x - 6)^{2}

Expand

- (x - 6)^{2} : - x^{2} + 12 x - 36

= x^{2} - 36 - x^{2} + 12 x - 36

Group like terms

= x^{2} - x^{2} + 12 x - 36 - 36

Add similar elements:

x^{2} - x^{2} = 0

= 12 x - 36 - 36

Subtract the numbers:

- 36 - 36 = - 72

= 12 x - 72

511 \times 22 \times 22

50 \cdot \frac{π}{180}

2 x - \frac{2}{x ^{2}}

cos^{- 1} (x)

5 \times \frac{3}{2}