Factorise 1. x² - 49
Answers
Answered by
9
Answer:
x²-(7)²
=(x-7) (x+7)
Step-by-step explanation:
hopes it helps you plz follow and drop me thanks
Answered by
1
Answer:
(x±7)(x±7)
Step-by-step explanation:
x^2 -49
=> x^2 -7^2
=> using the formula a^2 - b^2= (a±b)(a±b)
=> x^2 - 7^2 = (x±7)(x±7)
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