Question

Divide as directed: 10y ( 6y + 21 ) ÷ 5 ( 2y + 7)​

Answer 1

Answer:

6y

Step-by-step explanation:

$\\\\\frac{10y(6y+21)}{5(2y+7)} \\\\= \frac{10y\times 3(2y+7)}{5(2y+7)} \:.... (by \: taking \: out \: common)\\\\Cancel\: out \: (2y+7) \: and \: \frac{10y \times 3}{5} = 6y\\\\Therefore, \: \frac{10y(6y+21)}{5(2y+7)} = 6y$