Question

1a) Subtract 4a - 7 ab + 3b + 12 from 12a - 9ab + 5b - 3
b) Subtract 3xy + 5yz - 7zx from 5xy – 2yz - 2zx + 10xyz​

Answer 1

Answer:

a. Solution:

12a-9ab+5b-3-4a-7ab+3b+12

12a-4a-9ab-7ab+5b+3b-3+12

8a-16ab+8b+9

b. Solution:

5xy-2yz-2zx+10xyz-3xy+5yz-7zx

5xy-3xy-2yz+5yz-2zx-7zx+10xyz

2xy+3yz-9zx+10xyz

I hope this is helpful for you

Answer 2

Answer:

[ a ] 12a -9ab +5b -3 -( 4a -7ab +3b +12 )

=> 12a -9ab +5b -3 -4a +7ab -3b -12

=> 8a -2ab +2b -15

[ b ] 5xy -2yz -2zx +10xyz -( 3xy +5yz -7zx )

=> 5xy -2yz -2zx +10xyz -3xy -5yz +7zx

=> 2xy -7yz +5zx +10xyz

HOPE IT HELPS.....

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