Question

Simplify the following:
(i) (x-2y)(y-3x)+(x+y)(x-3y)-(y–3x)(4x-5y)
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Answer 1

Answer:

Simplify the following:

(x−2y)(y−3x)+(x+y)(x−3y)−(y−3x)(4x−5y)

(x−2y)(y−3x)+(x+y)(x−3y)−(y−3x)(4x−5y)

xy−3x 2 −2y 2 +6xy+x 2 −3xy+xy−

3y2 −4xy+5y2+12x2−15xyx2(−3+1+12)+xy(1+6−3+1−4−15)+y2(−2−3+5)

10x2-14xy