Multiply.(9a - 1)2

A. 81a2 - 18a + 1
B. 9a2 - 18a + 1
C. 9a2 + 1
D. 81a2 + 1


Answer: A

Mathematics

You might also like to view...

Use the given graph of f(x) = ax2 + bx + c to solve the specified inequality.f(x) > 0

A. x > -3 B. x ? -3 C. All real numbers D. No solutions

Mathematics

Solve.The formula S = P - 0.1P gives the sale price, S, of a shirt that was marked down 10% from the original price, P. Find the sale price of a shirt that originally cost $39.

A. $40.00 B. $38.90 C. $42.90 D. $35.10

Mathematics

Represent the quantity by an integer.453 feet above sea level

A. 453 B. -453

Mathematics

Evaluate the algebraic expression under the given conditions.b2 - 4ac for a = 8, b = -8, and c = -6

A. 256 B. 128 C. 108 D. -2880

Mathematics