Question

if x= 2 is a root of polynomial P(x)=2x³-3x+7 a then find the value of a

Answer 1

HeRe Is Your Ans ⤵

****

➡2X² - 3X + 7a = 0

➡2 × (2)³ - 3 × 2 + 7a = 0

➡2 × 8 - 6 + 7a = 0

➡16 - 6 + 7a = 0

➡10 + 7a = 0

➡7a = - 10

➡a = -10 / 7

Hence , Value Of a Is

$\fbox{\frac{ - 10}{7} }$

******

$<marquee > hope it helps u$

Answer 2

Hey mate....

2x^2-3x+7a=0

2 (2)^2-3×2+7a=0

16-6 +7a=0

10+7a=0

10=7a

a=-10/7

I hope you like this answer make me brilliant.