simplify:
• (4x+7)²(4x-7)².
• (x-y)²(x+y)².
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=(4x+7)*²(4x-7)*²0.
=(x-y)*²(x+y)*²0.
==========
x = 0.0
y = 0.0
e^(x)=2
==========
x = 0.693115234375
astu22:
wrong
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