To simplify the expression, let's start by multiplying the terms inside the parentheses:
(x-5)(x+3) = x*x + x*3 - 5*x - 5*3
Simplifying this gives us:
= x^2 + 3x - 5x - 15
Now we can combine like terms (3x - 5x) to get:
= x^2 - 2x - 15
Now let's simplify the second expression:
2x^2 - x^2 - 2x - 20 + 5
= x^2 - 2x - 15
We can see that the simplified expression for both is the same: x^2 - 2x - 15
(X-5)(x+3)
2x^2-x^2-2x-20+5
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