(8a – 1)2

Solve.A projectile is fired upward from the ground with an initial velocity of 400 feet per second. Neglecting air resistance, the height of the projectile at any time t can be described by the polynomial -16t2 + 400t. Find the height of the projectile at t = 8 seconds.

(8p + 1)(8p – 1)

Subtract the polynomials.(9x – 16) – (-2x + 14)

-2

Evaluate the function.Find f(-3) when f(x) = x2 + 4x + 1.

Simplify the expression. Write the result using positive exponents only. 2

(b – 4)(b + 8)

Add the polynomials.(-6×2 – 3x + 4) + (8×2 – 3x + 1)

Find the product.(2y + 9)(5y + 4)