Simpify- (7m-8n)²+ (7m+8n)²and tell the identity by which you found the answer? Please it is urgent.
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( 7m - 8n ) ² + ( 7m + 8n ) ²
49m² - 112mn + 64n² + ( 7m + 8n ) ²
49m² - 112mn + 64n² + 49m² + 112mn + 64n²
98m² - 112mn + 64n² + 112mn + 64n²
98m² + 64n² + 64n²
98m² + 128n²
hope helpful for you
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