Question

6. If a=6 and b=3 then find the values of the following algebraic expressions.
(ii) -10ab
(iii) a2+ ab + b 2
(iv) (a + b)2



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Answer 1

(ii)-10×6×3=-180

Hope it helps you

Answer 2

Answer:

$- 10ab \\ = ( - 10) \times6 \times 3 \\ = ( - 18) \\ \\2a + ab + 2b \\ = (2 \times 6) + (6 \times 3) + (2 \times 3) \\ = 12 + 18 + 6 \\ = 36 \\ \\ 2(a + b) \\ = 2(6 + 3) \\ = 2(9) \\ = 18$

Step-by-step explanation:

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