x²y²,-5x²y²,-6x²y² add it by using horizontal method
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x²y²+(-5x²y²)+(-6x²y²)
= x²y²- 5x²y²-6x²y² [ (+)×(-)= -]
= x²y²-11x²y²
= -10x²y²
arpita6873:
thanks sis so much
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