Question

Q2. Subtract:
(i) -5y2
from y2
(ii) 6xy from -12xy
(iii) (a – b) from (a + b)
(iv) a(b – 5) from b(5 – a)
(v) -m2 + 5mn from 4m2 – 3mn + 8
sorry I ask a lot of question

Answer 1

Answer:

here is ur answer

it's very simple

Answer 2

Answer:

(I) -6y²

(ii) 18xy

(iii) -2b

(iv) -5a +2ab-5b

(v) -5m²+8mn-8

Step-by-step explanation:

(I) -5y²-y²

= -6y²

(ii) 6xy-(-12xy)

= 6xy+12xy

= 18xy

(iii) (a-b)-(a+b)

= a-b-a-b

=-b-b

= -2b

(iv) a(b-5)-b(5-a)

= ab-5a-5b+ab

= -5a +2ab-5b

(v) (-m²+5mn)- (4m²-3mn+8)

= -m²+5mn-4m²+3mn-8

=-5m²+8mn-8

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