What is (x+3)(x-3)-(x+5)(x-5) ?

The solution to (x+3)(x-3)-(x+5)(x-5) is 16

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simplify (x+3)(x-3)-(x+5)(x-5)

simplify

(x + 3) (x - 3) - (x + 5) (x - 5)

16

Solution steps

(x + 3) (x - 3) - (x + 5) (x - 5)

Expand

(x + 3) (x - 3) : x^{2} - 9

= x^{2} - 9 - (x + 5) (x - 5)

Expand

- (x + 5) (x - 5) : - x^{2} + 25

= x^{2} - 9 - x^{2} + 25

Group like terms

= x^{2} - x^{2} - 9 + 25

Add similar elements:

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

= - 9 + 25

Add the numbers:

- 9 + 25 = 16

= 16

1 + 3.32 lo g_{10} (40)

∣ - 5 + 7 ∣

4 (x + h)^{2} + 2 (x + h) - 3

(x^{2} y^{3})^{- 2}

18 \cdot (- 2)