Question

Without actual division, prove that (x - 2) and (x + 7) are the factors of x³ + 2x² - 29x + 42.​

Answer 1

Answer:

(x-2)=0

x=2

input the value of x=2 in the equation:

=8+8-58+42

= 16-58+48

= 58-58

= 0.

(x+7)=0

x= -7

input the value of x=-7 in the equation:

= -343+98+203+42

= -343+343

= 0.

Hence, proved.

Answer 2

Answer:

$\times - 2 = 0$

x=2

Step-by-step explanation:

1. x+7=0,,x=-7. substitute any one zero in the equation p(2)=2*2*2+2*2*2-29*2+42