Factor.49 - a2 - 2ab - b2
A. (7 + a + b)(7 - a - b)
B. (7 + a - b)(7 - a - b)
C. (7 + ab)(7 - ab)
D. (7 + a + b)(7 + a - b)
Answer: A
Mathematics
You might also like to view...
Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at 
; R: |x - 3| ? 0.2, |y - 3| ? 0.2, |z - 3| ? 0.2
A. |E| ? 0.00001108 B. |E| ? 0.00001847 C. |E| ? 0.00001477 D. |E| ? 0.00000985
Mathematics
Use the order of operations to evaluate each problem.
A. 63 B. 21 C. 50 D. 7
Mathematics
Find the exact solutions to the quadratic equation in the complex numbers.5x2 + 55 = 0
A. ±
B. ± i
C. ±11i
D. 27.5
Mathematics
Find the sum or difference.(5x4 - 9x2 + x) - (2x3 + 8x2 + 3x) + (4x2 - x)
A. 11x5 + 7x4 - 3x B. 5x4 - 2x3 - 13x2 - 3x C. 5x4 + 2x3 - 21x2 - 3x D. 5x4 - 2x3 - 11x2 + 3x
Mathematics