1. subtract the following.
i) 15x²y²-2xy and 3xy
ii) 15x²+7y²-3 and 5x²+2y²-2
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Answer:
i) 15x²y²-2xyand 3xy = 5x²y²-5xy
ii) 15x²+7y²-3 and 5x²+2y²-2 = 10x²+5y²-1
Step-by-step explanation:
In context to the given question we have to find the subtracted value of two given problems
given; Subtract
i) 15x²y²-2xy and 3xy
ii) 15x²+7y²-3 and 5x²+2y²-2
therefore;
1). 15x²y²-2xy and 3xy
By subtraction
15x²y²-2xy - 3xy
= 5x²y²-5xy [ as we know (-) + (-) will be (+) but the sign will be (-) ]
2). 15x²+7y²-3 and 5x²+2y²-2
By subtraction
15x²+7y²-3 - (5x²+2y²-2)
= 15x²+7y²-3 -5x²-2y²+2 [as we know(-) + (+)will be(-) ]
= 10x²+5y²-1
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