Question

Subtract 2x² + 5xy from 3x²-2xy-5z. x²-7xy-5z x²-7xyz x²+6z+7xy​

Answer 1

Subtracting,

7xy(x

2

−2xy+3y

2

)−8x(x

2

y−4xy+7xy

2

) from 3y(4x

2

y−5xy+8xy

2

)

⇒ 7x

3

y−14x

2

y

2

+21xy

3

−8x

3

y+32x

2

y−56x

2

y

2

from 12x

2

y

2

−15xy

2

+24xy

3

= (12x

2

y

2

−15xy

2

+24xy

3

)−(7x

3

y−14x

2

y

2

+21xy

3

−8x

3

y+32x

2

y−56x

2

y

2

= 12x

2

y

2

−15xy

2

+24xy

3

−7x

3

y+14x

2

y

2

−12xy

3

+8x

3

y−32x

2

y+56x

2

y

x

2

= 82x

2

y

2

+3xy

3

+x

3

y−15xy

2

−32x

2

y