Question

Which is a factor of 144 − 49x2? HELP PLEASE

Answer 1

(12 + 7x)(12 - 7x) the answer to the question

Answer 2

Factors (12 - 7x) ( 12 +7x ) .

Explanation:

Given : 144 − 49x².

To find : Which is a factor .

Solution : We have given 144 − 49x²

We can write 144 = (12)².

49 = (7)².

Then (12)² - (7x)².

By the formula (a)² - (b)² = (a-b) ( a+b) .

Here, a = 12 , b = 7x

(12)² - (7x)² = (12 - 7x) ( 12 +7x ) .

Therefore, Factors (12 - 7x) ( 12 +7x ) .