3x (-6x + 11y) - (5x + 12y) (2x + 9y) simplify
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Answer:
-28x^2-108y^2-36xy
Step-by-step explanation:
3x (-6x + 11y) - (5x + 12y) (2x + 9y)
= -18x^2+33xy-(10x^2+45xy+24xy+108y^2)
= -18x^2+33xy-10x^2-45xy-24xy-108y^2
= -18x^2-10x^2-108y^2+33xy-45xy-24xy
= -28x^2-108y^2-36xy
= -(28x^2+108y^2+36xy)
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