5/3 is a root of f(x) = (3x + 5) (x2 - 6x + 9)2 = 0 true false

For this case we have the following function:

To find the roots we must equal the function to 0, that is:

So:

Subtracting 5 from both sides:

Dividing between 3 on both sides:

Thus, one of the roots is

True

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629