evaluate the product using identity:-(x-2) (x+2) when x=2
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Answered by
1
Step-by-step explanation:
given the value of x is 2
substituting x=2 in the eq (x-2)(x+2)
this is in the form (a+b)(a-b)
(a+b)(a-b)=a²-b²
therefore (x-2)(x+2)=x²-4 [x=2]
=2²-4
=4-4
=0
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Answered by
1
0
Step-by-step explanation:
= (x-2) (x+2)
= ( a-b ) ( a+b) = a²- b²
= x ² - 2 ²
putting the value of x in eq.
= 2²- 2²
= 4-4
=0
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