Question

Check using division, if:
at x + 3 is a factor of
${x}^{2}$
+ 8x + 21​

Answer 1

Step-by-step explanation:

just put the value of X in this equation u get urs answer perfectly

Answer 2

Answer:

No

Note:

★ Factor theorem : If the remainder obtained on dividing the polynomial p(x) by another polynomial g(x) is zero , then g(x) is a factor of p(x) .

★ If g(x) is a factor of the polynomial p(x) , then the remainder obtained on dividing the polynomial p(x) by g(x) is zero .

Explaination:

• For division of x² + 8x + 21 by x + 3 , please refer to the attachment .

• Here, the remainder obtained on dividing the polynomial x² + 8x + 21 by x + 3 is not zero , thus x + 3 is not a factor of the polynomial x² + 8x + 21 .