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

399

You visited us 399 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VII

Mathematics

Multiplication of Integers

Multiply:a-1 ...

Question

Multiply:
(a − 1) by (0.1a² + 3)

Open in App

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 $0.1 a^{3} - 0.1 a^{2} + 3 a - 3$ .

Suggest Corrections

Similar questions

Q. The scale of an ammeter is shown below:

The least count of this ammeter is :
(1) 0.1 A
(2) 0.01 A
(3) 0.02 A
(4) 0.2 A

If P(k) is the statement 2^3k - 1 is divisible by 7, then P(k + 1) is

$Divide : (i) 3 ~ b y \frac{1}{3} (i i) - 2 ~ b y (- \frac{1}{2}) (i i i) 0 by \frac{7}{- 9} (i v) \frac{- 5}{8} by \frac{1}{4} (v) - \frac{3}{4} by - \frac{9}{16}$

Q. Simplify by combining similar terms:

3 \sqrt{147} - \frac{7}{3} \sqrt{\frac{1}{3}} + 7 \sqrt{\frac{1}{3}}

Q. Simplify by combining similar terms :

3 \sqrt{147} - \frac{7}{3} \sqrt{\frac{1}{3}} + 7 \sqrt{\frac{1}{3}}

Join BYJU'S Learning Program

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 $0.1 a^{3} - 0.1 a^{2} + 3 a - 3$ .