Question

6. check wheather 7x + 3 is a factor of 3x2 + 7x.​

Answer 1

$3x + 7 \times x = 3 {x}^{2} + 7x \\ \bf For \: Checking \huge\downarrow\\ \textbf{ Divide} \: 3 {x}^{2} + 7 \: by \: 7x + 3, \bf remainder \: will \: be \: x$

Answer 2

3x+7×x=3x

2

+7x

ForChecking↓

Divide3x

2

+7by7x+3,remainder will be x