1)4(a-b)-5(b-a)+3b
2)5x-[3y{3x-(y-x)}]
3)-5x-[2y+3(y-4)-6x²]
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here is your answers
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Step-by-step explanation:
1) 4(a - b) - 5(b - a) + 3b
= 4a - 4b - 5b - 5a + 3b
= 4a - 5a - 4b - 5b + 3b
= - a - 6b
2) 5x - [3y {3x - (y - x) } ]
= 5x - [3y {3x - y + x} ]
= 5x - [3y {4x - y} ]
= 5x - [12xy - 3y²]
= 5x - 12xy + 3y²
3) - 5x - [2y + 3(y - 4) - 6x²]
= - 5x - [2y + 3y - 12 - 6x²]
= - 5x - [5y - 12 - 6x²]
= - 5x - 5y + 12 + 6x²
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