1+100000000000000000000000000000000 00000000000000000000000000000000000 00011111111111199999999999999999922 22222222222222222222222222222222222 2222222222222=???

1000000000000000000000000000000000000000000000000000000000000000000000011111111111199999999999999999922222222222222222222222222222222222222222222222223 Step-by-step explanation: add just 1

1.000000000000000000000000000000000000000000000000E150

Step-by-step explanation:

Is this a question?

i would have to say it is c.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15