Question

What’s the quadratic expression for this one

Answer 1

We have the following expression:
 (2x + 5) * (7-4x)
 Rewriting we have:
 14x - 8x ^ 2 + 35 - 20x
 Grouping terms with the same exponent:
 -8x ^ 2 + x (14-20) + 35
 Rewriting:
 -8x ^ 2 - 6x + 35
 Answer:
 the quadratic expression for this is:
 -8x ^ 2 - 6x + 35