Find 'x' value
x^2-49=0
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Answered by
4
Answer:
=>X^2-49=0
=>x^2=49
=>x=+-7
=> x=7 or x= - 7
Answered by
70
=>x^2-49
=>(x^2-7^2)
(a^2-b^2=(a+b)(a-b)
=>(x+7)(x-7)
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