Multiply-a-1 by 0-1 a2-3

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Standard VII

Mathematics

Multiplication of Integers

Multiply:a-1 ...

Question

Multiply:
(a − 1) by (0.1a² + 3)

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Solution

To multiply, we will use distributive law as follows:

$(a - 1) (0.1 a^{2} + 3) = 0.1 a^{2} (a - 1) + 3 (a - 1) = 0.1 a^{3} - 0.1 a^{2} + 3 a - 3$

Thus, the answer is $0.1 a^{3} - 0.1 a^{2} + 3 a - 3$ .

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Multiply: (a − 1) by (0.1a2 + 3)

To multiply, we will use distributive law as follows: a-10.1a2+3=0.1a2a-1+3a-1=0.1a3-0.1a2+3a-3 Thus, the answer is 0.1a3-0.1a2+3a-3.

Multiply:
(a − 1) by (0.1a² + 3)

To multiply, we will use distributive law as follows:

$(a - 1) (0.1 a^{2} + 3) = 0.1 a^{2} (a - 1) + 3 (a - 1) = 0.1 a^{3} - 0.1 a^{2} + 3 a - 3$

Thus, the answer is $0.1 a^{3} - 0.1 a^{2} + 3 a - 3$ .