I need to know if 76543•9-5=688882 is a conjecture based off 3•9-5=22

43•9-5=382

543•9-5=4882

6543•9-5=58882

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

won't that be plagrisim thought?

step-by-step explanation:

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.

b. hoped i'm right lol

step-by-step explanation: