Simplify and find the value of the expression if x=2 and y = 1
3xy (4x- 5y) +3x^2y
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3xy(4x-5y) + 3x²y
3(2)(1)[4(2)-5(1)]+3(2)²(1)
6(8-5)+3(4)(1)
6(3)+12
18+12
30
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2
Answer:
30
Step-by-step explanation:
3xy(4x-5y)+3x²y
=12x²y-15xy²+3x²y
=15x²y-15xy²
=15xy(x-y)
the equation is simplified,now add the value of x and y
15×2×1(2-1)
=30×1
=30
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