Math, asked by srivastavaranjna1980, 9 months ago

please solve the problem

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Answered by chouhanharshvardhans

1

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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