(-2x^3 +x -5) * (x^3 -3x)
= x^6*(-2*1) +x^4*(-2*-3 +1*1) +x^3*(-5) +x^2*(-3) +x(-5*-3)
= -2x^6 +7x^4 -5x^3 -3x^2 +15x
10% of 80 = 8
80 - 8 = 72
if they are 10% off, the contact lenses will cost $72
Answer:
Should be the second and third ones. If you multiply the values together, 3/4s will equal 3/16 and 3/32 with the other value.
Well, they are equivalent, but I'm not sure if that's exactly what you're asking. :)
Answer: 6x + 24
Explanation: In this problem, the 6 "distributes" through the parenthses, which means that it multiplies by each of the terms inside.
So we have 6(x) + 6(4) which simplifies to 6x + 24.
