plz help me urgently
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rupsa1214:
I m in 8th
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=(x+4)^2-(x-4)^2
=x^2+16+8x-(x^2+16-8x)
=x^2+16+8x-x^2-16+8x
=16x ans
=x^2+16+8x-(x^2+16-8x)
=x^2+16+8x-x^2-16+8x
=16x ans
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4
aha it's answer is 16x
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