Simplify

(2x^{2} - 5x + 3) - (-x^{2} + 4x - 5)

3x^2 - 9x + 8

Step-by-step explanation:

To simplify:

Distribute the -1 into the second term.Collect and combine like-terms (terms with the same variables or powers)

The expression can be rewritten has (2x^2 - 5x + 3) -1(-x^2 + 4x - 5)

After distributing the -1, the equation becomes:

(2x^2 - 5x + 3) + (x^2 - 4x + 5)

The like-terms are:

2x^2 and x^2-5x and -4x3 and 5

Combine the like-terms:

2x^2 + x^2 = 3x^2-5x - 4x = -9x3 + 5 = 8

Substitute the simplified like-terms into the expression, in descending order:

3x^2 - 9x + 8

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answer:
congruent segments
step-by-step explanation:
congruent segments. take a line, cut it in half, superipose one half over the other half; you'll have congruence.

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