Question

Найти значение выражения:5-3y² при y=-2

Answer 1

5-(3×4)=5-12=-7
Вроде все

Answer 2

To find the value of the expression 5 - 3y² when y = -2, simply substitute y with -2 and perform the calculations:

5 - 3(-2)²

Now, we need to evaluate (-2)² first:

(-2)² = (-2) * (-2) = 4

Now substitute this value back into the expression:

5 - 3 * 4 = 5 - 12 = -7

So, the value of the expression 5 - 3y² when y = -2 is -7.