Q: Solve x squared - 16 equals 0?

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4n2-25 = 0 4n2=25 n2=6.25 n=sqrt(6.25) n= +2.5 or -2.5

16

So u have the function x2-4=0 Now because 4 is a squared number, its square root is 2 (x+2)(x-2)=0

Using the quadratic equation formula: x = 8.42 or x = -1.42

9x squared plus 16 = 0 factored is plus and minus 4/3 i.

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Solve this problem -x squared -40x- 80 =0

By factoring. q2 + 16q = 0 q (q + 16) = 0 Now, either q = 0, or q + 16 = 0. Solve those two equations to get the solution.

If x squared -10 = 0 then x = the square root of 10

3x2 + 2x = 16 ∴ 3x2 + 2x - 16 = 0 ∴ 3x2 - 6x + 8x - 16 = 0 ∴ 3x(x - 2) + 8(x - 2) = 0 ∴ (3x + 8)(x - 2) = 0 ∴ x ∈ {-8/3, 2}

3x2-9x = 0 x(3x-9) = 0 x = 0 or x = 3

x = 25 / 3squared + 5

X (x - 25) So X = 0 Or X = +25

x2 + 6x + 8 = 0 Solve for x.X = -2 or X = -4

m2 - 8m + 16 = 0 (m - 4)2 = 0 so m = 4

x * x - 9 = 0 PEMDAS = Multiplication first. What multiplied it self equals nine? 3. So x = 3

0 squared is 0. Zero times zero equals zero.