Q31 of 128 Page 224

The value of (3x3 +9x2 + 27x) ÷ 3x is

(a) x2 +9 + 27x (b) 3x3 +3x2 + 27x


(c) 3x3 +9x2 + 9 (d) x2 +3x + 9

(d)

Given: (3x3 +9x2 + 27x) ÷ 3x




= x2 + 3x + 9


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29

The value of (-27x2y) ÷ (-9xy) is

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The value of (3x3 + 9x2 + 27x) ÷ 3x is

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The value of (a + b)2 + (a – b)2 is:

(a) 2a + 2b (b) 2a – 2b (c) 2a2 + 2b2 (d) 2a2 – 2b2

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The value of (a + b)2 – (a – b)2 is

(a) 4ab (b) – 4ab (c) 2a2 + 2b2 (d) 2a2 – 2b2