What is expand (0.6b-4.2)12.5b ?

The solution to expand (0.6b-4.2)12.5b is 7.5b^2-52.5b

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expand (0.6b-4.2)12.5b

expand

(0.6 b - 4.2) 12.5 b

7.5 b^{2} - 52.5 b

Solution steps

(0.6 b - 4.2) \cdot 12.5 b

= 12.5 b (0.6 b - 4.2)

Apply the distributive law:

a (b - c) = ab - a c

12.5 b (0.6 b - 4.2) = 12.5 b \cdot 0.6 b - 12.5 b \cdot 4.2

= 12.5 b \cdot 0.6 b - 12.5 b \cdot 4.2

Simplify

12.5 b \cdot 0.6 b - 12.5 b \cdot 4.2 : 7.5 b^{2} - 52.5 b

= 7.5 b^{2} - 52.5 b

3 (m + n)

7 m + 7 - 5 m

\frac{x ^{2} + x - 2}{x ^{2} - 3 x + 2}

\frac{2 x ^{2} + 3 x + 1}{x ^{2} - 2 x - 3}

- 12 - 3

What is expand (0.6b-4.2)12.5b ?
The solution to expand (0.6b-4.2)12.5b is 7.5b^2-52.5b