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3x2-7x+4 = (3x-4)(x-1) when factored
It is a quadratic expression and is (3x+2)(x-2) when factored
Area of rectangle: (x+5)(3x-7) = 3x2+8x-35
The following is the answer:
A quadratic equation is an equation where the highest exponent on the variable is 2. For example, the equation, y=2x2+3x-2 is a quadratic equation. The equation y=2x is not quadratic because the highest exponent on x is 1. (If there is no exponent on an x, then the exponent is 1.) The equation, y=x3+3x2-2 is not quadratic because the highest exponent is three. On a graph, a quadratic equation looks like a U or and upside down U. Here are some more example of quadratic equations: y=x2 y=3x2+2x-3 y=x2+5