Factor the difference of squares.49a2 - 49b2
A. (7a - b)(7a + b)
B. (a + 7b)(a - 7b)
C. 49(a + b)(a - b)
D. 49(a - b)2
Answer: C
You might also like to view...
Determine whether or not the function is one-to-one.f(x) = 3x2 + 2
A. Yes B. No
Write a formula for the nth term of the indicated sequence. Write out the first five terms of the sequence.geometric: a = 4, r = 2
A. an = 4 ? 2n; 8, 16, 32, 64, 128 B. an = 4 ? 2n+1; 8, 16, 32, 64, 128 C. an = 4 ? 2n; 4, 8, 16, 32, 64 D. an = 4 ? 2n-1; 4, 8, 16, 32, 64
Add or subtract by first simplifying each radical and then combining any like radicals. Assume that all variables represent positive numbers.
+ 
+ 
+ 
A. 10
+ 
+ 
B. 10
+ 21
C. 52
+ 21
D. 
+ 
+ 21
Solve.The orbit of a planet, in a galaxy far, far away, is an ellipse. If the center of the ellipse is at the origin, an approximate equation for the orbit is 
+ 
= 1, where x and y are measured in millions of miles. Find the largest possible distance across the ellipse. Round the answer to the nearest million miles.
A. 165 million miles B. 116 million miles C. 82 million miles D. 13,564 million miles