Question

(x + 10) (x - 10) = ?

a. x - 10

b. x2 + 100

c. x2 - 100

d. x3 - 25
please me the correct answer​

Answer 1

Answer:

$(x + 10)(x - 10) \: is \: in \: the \: form \: of \: \\ ( {a}^{2} - {b}^{2} ) = (a + b)(a - b)$

By using the formula we get,

$(x + 10)(x - 10) \\ {x}^{2} - {10}^{2} = {x}^{2} - 100$

The correct option is 'C'.

I hope it is helpful.

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