Practice problem
If a hula hoop has a radius of 4x−74x - 74x−7, what is the area of the hula hoop?
16x2−56x+4916x^2 - 56x + 4916x2−56x+49
π×(8x2−56x+49)\pi\times (8x^2 - 56x + 49)π×(8x2−56x+49)
π×(16x2−28x+49)\pi\times (16x^2 - 28x + 49)π×(16x2−28x+49)
π×(16x2−56x+49)\pi\times (16x^2 - 56x + 49)π×(16x2−56x+49)
Type a concept, like “slope” or “photosynthesis”.
