Question

if m is equal to 2 find the value of 3 m square - 2 m - 7​

Answer 1

Answer:

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Yes

Step-by-step explanation:

3m²-2m-7 = 3(2)²-2(2) - 7 = 3*4 - 4 -7 = 1

Answer 2

The value of the given expression $3m^2-2m-7$ is 1 , if m=2.

Explanation:

• Substitution property of equality says that whenever p=q, then q can be substituted in any equation or expression for p .

The given expression :

$3m^2-2m-7$

To find the value of the above expression for the value m = 2 , we substitute by using Substitution property m by 2 in the given expression , we will get

$3(2)^2-2(2)-7$

Now simplify,

$=3(4)-4-7$

$=12-4-7= 8-7=1$

Hence, the value of the given expression $3m^2-2m-7$ is 1.

# Learn more :

X⁸ ÷ x⁷ X x² : If x = 2, then find the value.

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