Simplify the following polynomial expression (3x^2-x-7)-(5x^2-4x-2)+(x+3)(x+2)
The polynomial simplifies to an expression that is a (constant, quadratic, linear) ( binomial, monomial, trinominal) with a degree of (0, 2, 1).

I think the degree is 2. The type is monomial and the answer is -x^2+8x+1. I don't know about constant, quadratic, or linear... Please Help.

I know simplified it is  -x^2 + 8x + 1

The degree of the simplified expression is 2.

It is a monomial

I am almost positive it is constant.

Hope this helped

:D

Ps. Sorry if anything is incorrect, math is my worst subject but I am pretty sure everything is correct.

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step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.