d) 4x2 + 5y2 - 6z from -5- 4y2 + 3x?
e) 10x+y2 - 7xy - y2 from - 8y2 - 10xy + 8x”y?
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Answer:
a=-9y^2+3x+6z+3
Step-by-step explanation:
b=-5y^2-10x+5xy
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