Question

what number should be added to the polynomial x+7x-35 so that 3 is the zero of polynomial
${x}^{2} + 7x - 35$

Answer 1

Let P(x) =x2+7x-35
P(3)=3×3+7×3-35
=9+21-35
=-5
Remainder =-5
Thus - 5 is added to p(x) so that 3is one of the zero.

Answer 2

Answer: -5 should be added

Step-by-step explanation:

P(x) = X^2+7x -35

Then put the value of 3 in X,

I.e

P(3) = 3^2 +7*3-35

= 9 + 21 - 35

= -5

Therefore, -5 should be added to -35( REMEMBER ALWAYS PUT A SIGN OF SUBTRACT WHENEVER ADDED IS WRITTEN)

Hope it helps!!