# Subtract. {eq}\begin{array}{align} & 2x^2 + 5x - 10 \\ - & 3x^2 - x + 9 \end{array} {/eq}

## Question:

Subtract.

{eq}\begin{array}{align} & 2x^2 + 5x - 10 \\ - & 3x^2 - x + 9 \end{array} {/eq}

## Quadratic Equations in one variable:

Quadratic equations in one variable can be defined as the equations that contain a single variable of degree two. For subtraction of one quadratic expression by other we need change the symbol of all the terms in the expression after '-' symbol.

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