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42 + 5 = 16 + 5 = 21

3x2 = 21 describes two single values, and does not have an x intercept. 3x2 = 21 ∴ x2 = 7 ∴ x = ±√7

91 to the 2nd power is 8,281.

4 to the 2nd power in exponents is 42

3 raised to the 2nd power is 9

25

2121 = 5.842587018*1027

(21)1

25a2

1.39 times 10 to the 2nd power is 139

The GCF is x2

1000000000000000000000 It is 10 with 21 zeroes.

21^6 or 21x21x21x21x21x21 = 85,766,121

10^21 = 1,000,000,000,000,000,000,000

22x52x7 4x25x7 100x7 700

4C2 * (-2CD2) = -8C3D2

that would be i dont know

The GCF is 3y^2.

-6 to the 2nd power is -6 x -6 = positive 36

You multiply 21 times itself three times: 21 x 21 x 21 = 9,261.

18 to the 2nd power is 324. To solve you just take 18 and times it by 18. It is the same with any power problem.

dxy, dxz, dyz, dxto the 2nd power - y to the 2nd power

12 to the 2nd power means 12 squared (12 * 12). 122 = 144

5 to the 2nd power is 5 multiplyed by 5 it equals 25 -----------------penguin man---------------------

six to the 2nd power= 36 In number form it looks like this: 62