1.

-(5y2 + 2y – 6) Is this correct? If not, correct the mistake.

Answer»

Taking -(5y2 + 2y – 6) 

= 5y2 + [(-)(+) 2y] + [(-) × (-)6]

= -5y2 – 2y + 6

≠ -5y2 – 2y + 6

∴ Correct answer is -5y2 + 2y – 6 = -(5y2 + 2y + 6)



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