Question

2. Find the remainder when X - ax + 6x -a is div
3. Check whether 7 + 3x is a factor of 3x3 +7x
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Answer 1

7 + 3x is not a factor of 3x3 +7x

Step-by-step explanation:

$here \: p(x) = 3 {x}^{3} + 7x \\ and \: g(x) = 7 + 3x \\ if \: g(x)is \: 0 \\ than \: 7 - 3x = 0 \\ \\ - 3x = - 7 \\ x = - 7 \div - 3 \\ x = 7 \div 3 \\ \\ \\ as \: we \: find \: the \: value \: of \: x \\ \: lets \: put \: it \: in \: p(x) \\ \\p(x) = 3 {x}^{3} + 7x \\ 3 \times( {7 \div 3}^{3} ) + 7 \times 7 \div 3$

=343/7+49/3

=54.444..