Question

verify that 1/2 ((one upon two)) is a zero of the polynomial p(x)=4x cube +20x square - 23x +6

standard 10th

its urgent

Answer 1

Answer:

to verify x=1/2 is zero of 4x³+ 20x²-23x+ 6

p(x=1/2)⇒4(1/2)³+20(1/2)²-23(1/2)+6

⇒ 4×1/8+ 20×1/4-23×1/2+6

1/2+ 5- 23/2+6

lcm of equation =2

⇒1+10-23+12/2

23-23/2

p(x=1/2)=0

hence verified