Question

if 2 is root of the quadratic equal x^2-mx+4=0

Answer 1

Answer:

m=4

Step-by-step explanation:

P(x) = x^2-mx+4 =0

P(2)= 2^2-2m+4=0

=4-2m+4=0

8=2m

m=8/2

m=4

Answer 2

$\huge\bf\mathfrak\green{An}\red{sw}\blue{er} \: is \: 4$$\huge\bf\green{Given \: that,} \\ x = 2 \\ The \: given \: equation \: is \\ {x}^{2} - mx + 4 = 0 \\ By \: substituting \\ \: the \: value \: of \: "x" \: we \: get \\ {(2)}^{2} - m(2) + 4 = 0 \\ 4 - 2m + 4 = 0 \\ 8 - 2m = 0 \\ 2m = 8 \\ There \: fore,m = \frac{8}{2} = 4$

If my answer helps you please mark my answer as brain list and leave me a like.Don't forget to follow me. THANK you.