Question

7) Subtract the following algebraic expressions
i) 8m –1 from 16+m
ii) 9–16p2 from 11p3+p2–4
iii) 4mn +3n from 10n –7mn
8) What should be added to 12x2 +6y +16 to get 14y–x2 –5?
9) What should be subtracted from 3p3–4q2+7 to get 2p3–5q2–1?
10) From the sum of 8x2–6xy+14x and 10x2+12xy–11x subtract 8xy–2x2.
11) Simplify and find the value of
i) 3x–5–x+9x+4 if x = –2
ii) 10–3(b+3) +4(b–3) if b = –3
12) If a =1 b= –2 ,find the value of
i) –6a2+5ab
ii) a2+b2+2ab

Answer 1

Step-by-step explanation:

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