Question

5. If the expression (m² + 3m -z) is equal to 3 for m=2 then the value of 'z' is- *

1 point

7

6

5

4

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Answer 1

Answer:

z=7

Step-by-step explanation:

m²+3m-z=3

2²+3(2)-z=3

4+6-z=3

10-3=z

z=7

Answer 2

Question :-

If the Expression $(m^2 + 3m - z)$ is Equal to 3 for m = 2, then the Value of 'z' is -

(a) 7

(b) 6

(c) 5

(d) 4

Solution :-

Substituting m = 2 in the Expression, we get -

$\begin {aligned} (m^2 + 3m - z) = 3 & \implies ((2)^2 + 3 \times 2 - z) = 3\\\\& \Rightarrow (4 + 6 - z)= 3\\\\& \Rightarrow 10 - z = 3\\\\\therefore \: \bold z & = 10 - 3 = \bold 7 \end {aligned}$

-

Hence, The Value of z is 7 . . .

Option A is the Right Answer . . .

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