Question

Factorise and divide-
a) (5x3 - 15x2 + 25x) by 5x
b) (y2 + 5y - 36) by (y +9)​

Answer 1

• Step-by-step explanation:

This is your answer in this pic

This is multiplication

Answer 2

Step-by-step explanation:

a)

$\frac{5 \times 3 - 15 \times 2 + 25x}{5x} \\ = \frac{15 - 30 + 25x}{5x} \\ = \frac{- 15 + 25x}{5x} \\ = \frac{ 5( - 3 + 5x)}{5x} \\ = \frac{ - 3 + 5x}{x} (ans.)$

b)

$\frac{{y}^{2} + 5y - 36}{y + 9} \\ = \frac{{y}^{2} + 9y - 4y - 36}{y + 9} \\ = \frac{(y + 9)(y - 4)}{y + 9} \\ = y - 4(ans)$

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