Question

7. Subtract:
(1) 6x(x - y + z) - 3y(x + y - z) from 22(-x + y + z)
(ii) 7xy(x2 - 2xy + 3y2) - 8x(xy - 4xy + 7xy-) from 3y(4x+y - 5xy + 8xy2)​

Answer 1

Answer:

1 ) 22y-22x+22z-6x²+9xy-6xz+3y²-3yz

2) 14x²y²+12xy+3y²-59x²y+24xy³-36xy²

Step-by-step explanation:

1) As in the given question there is no common degree of variables. Hence we cannot substract different degree variables.

Ans will be,

22y-22x+22z-6x²+9xy-6xz+3y²-3yz.

2)From the equations given above we can say that, 12xy+3y²-15xy²+24xy³ -(-14x²y²+59x²y+21xy²)

after simplifying ans will be

14x²y²+12xy+3y²-59x²y+24xy³-36xy².