Question

Factorise 5x^3 -30x%2-45x

Answer 1

Answer:

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Step-by-step explanation:

5×3−30×2%−45x

5315

15-30\times \left(\frac{2}{100}\right)-45x

15−30×(

100

2

)−45x

\frac{2}{100}\approx 0.02

2

15-30\times \left(\frac{1}{50}\right)-45x

15−30×(

50

1

)−45x

30\frac{1}{50}=0.02

\frac{30}{50}\approx 0.6

15-\frac{30}{50}-45x

15−

50

30

−45x

\frac{30}{50}\approx 0.6

10

15-\frac{3}{5}-45x

15−

5

3

−45x

15\frac{75}{5}=15

\frac{75}{5}-\frac{3}{5}-45x

5

75

−

5

3

−45x

\frac{75}{5}=15

\frac{3}{5}=0.6

\frac{75-3}{5}-45x

5

75−3

−45x

37572

\frac{72}{5}-45x

5

72

−45x