Question

CHOOSE THE CORRECT OPTION.

Q1. (x+8)(x-10) in the expanded form is :-
a) x^2-8x-80
b) x^2-2x-80
c) x^2+2x+80
d) x^2-2x+80

PLEASE ANSWER QUICKLY!!!!!​

Answer 1

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Here is ur answer mate......♥️♥️

(x+8) (x-10)

x^x+x^8−10x−10^8

x^2-2x-80

Option B is correct✔

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Answer 2

(x + 8)(x - 10) = x² - 2x - 80

Given :

The expression (x + 8)(x - 10)

To find :

(x + 8)(x - 10) in the expanded form is

a) x² - 8x - 80

b) x² - 2x - 80

c) x² + 2x + 80

d) x² - 2x + 80

Solution :

Step 1 of 2 :

Write down the given expression

The given expression is (x + 8)(x - 10)

Step 2 of 2 :

Expand the expression

$\displaystyle \sf{ (x + 8)(x -1 0) }$

$\displaystyle \sf{ = x(x -1 0) + 8(x -1 0) }$

$\displaystyle \sf{ = {x}^{2} - 10x + 8x - 80 }$

$\displaystyle \sf{ = {x}^{2} - 2x - 80 }$

Hence the correct option is b) x² - 2x - 80

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