please solve the problem
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Coefficients=1
Add=2x+4x+5x-3x-7x
=11x-3x-7x
=11x-10x
=x
Subtract =2x^2-9x-8y+5
Simplify= 6x^3-2xy+3x^2-x
Now ,
If x=1and y=-2
6×1^3-2×1×-2+3×1^2-1
=6×1-(-4)+3×1-1 BODMAS
=6+4+3-1
=13-1
=12
HOPE SO THIS WILL HELP YOU
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