Continue the following pattern; describe the eighth figure in this pattern a. 49 small squares forming a larger 8 by 8 square b. 64 small squares forming a larger 9 by 9 square c. 64 small squares forming a larger 8 by 8 square d. 49 small squares forming a larger 9 by 9 square

l think the answer is B

Step-by-step explanation:

The eighth patern should give the result 81

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

step-by-step explanation:

1