Question

what should be the bell you off if the value of 2x²-5x+m is equal to -1 , when x = 1 ?
tell me fast and correct answer with solution​

Answer 1

Answer:

m=2

Step-by-step explanation:

By substituting the value of x in the equation, we get

$2 \times {1}^{2} - 5 \times 1 + m = - 1$

$2 - 5 + m = - 1$

$- 3 + m = - 1$

$m = - 1 + 3 = 2$