3 years ago

(b) Factorize: x2 - 49

Mathematics

2 answers:

Svetlanka [38]3 years ago

7 0

Answer:

(x-7)(x+7)

Step-by-step explanation:

x^2 = x * x

-49 = -7 * 7

(x-7)(x+7)

irina1246 [14]3 years ago

3 0

Answer:

(x+7)(x-7)

Step-by-step explanation:

This one has the standard shape of a²-b², therefore its factorization is (a+b)(a-b).

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