Question

solve if y=-3: -2y^2=​

Answer 1

Answer:

given y=-3

Step-by-step explanation:

-2y^2

so, 2*3^2= -2*9= (-18)

Answer 2

Answer:

The value of $- 2 {y}^{2}$ is -18.

Step-by-step explanation:

Given -

$y = - 3$

We have to find out the value of $- 2 {y}^{2}$

Solution -

$- 2 {y}^{2}$ (Given)

Put the given value of y

$= (- 2 )\times ( { - 3}^{2} )$

Square means multiply the given number with itself twice.

The Square of negative number is always positive.

So, The square of (-3) is 9.

$= (- 2) \times 9$

By multiplying 2 by 9 we get

$= - 18$

When we multiply the negative sign number with positive sign number Then, the answer is contains the negative sign.

Hence,

The value of $- 2 {y}^{2}$is -18.