Question

find the value k if 2 is zero of 2x²-k+4=0​

Answer 1

Answer:

12

Step-by-step explanation:

here is given the value of zero , i.e. x is 2.

we have to put the value of x in equation

2(2*2) - K+4=0

2*4- K+4=0

8- K +4=0

now add 8 and 4 and put the K in right hand side

K=12

Answer 2

$\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$

$\red{\bold{\underline{\underline{QUESTION:-}}}}$

find the value k if 2 is zero of 2x²-k+4=0

$\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$

Given:-2 is zero of 2x^2-k+4=0

now:-

$➩2 {x}^{2} - k + 4 = 0$

$➩2{(2)}^{2} - k + 4 = 0$

$➩8 - k + 4 = 0$

$➩ - k = - 4 - 8$

$➩ - k = - 12$

$➩k = 12 \: answer$

Hope it helps you..!!!

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