kidzsearch.com > wiki Explore:web images videos games

# Polynomial root

KidzSearch Safe Wikipedia for Kids.

The root of a polynomial *f* is a value for *x* where the polynomial value *f(x)* is zero.

For example, if the polynomial [math]f(x) = 2x^2 + 10x - 28[/math] then [math]f(2) = 2\cdot 2^2 + 10\cdot 2 - 28=0[/math], so 2 is a root of this polynomial.

In fact, it can be seen that also -7 is a root of this polynomial.