Multiply and simplify.
? 
A. 
B. 
C. 
D. -
Answer: A
Mathematics
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Find the LCM of the given polynomials.x - 7, 7 - x
A. x + 7 B. (x - 7)(7 - x) C. (x - 7) or (7 - x) D. -1
Mathematics
Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.
x2 + 
x + 
= 0
A. ±3 B. ±0.333 C. 0.333 D. -0.333
Mathematics
Perform the indicated operation.(4 - 3x3 + 6x5 + 8x4) + (8x4 - 9x3 + 7 + 8x5)
A. 14x5 + 16x4 - 12x3 + 11 B. 12x5 + 12x4 + 13x3 + 16 C. 18x24 + 11 D. 14x10 + 16x8 - 12x6 + 11
Mathematics
The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, if the products are defined.A is 1 × 4, B is 4 × 1.
A. AB is undefined, BA is 4 × 4. B. AB is 4 × 4, BA is 1 × 1. C. AB is 1 × 1, BA is 4 × 4. D. AB is 1 × 1, BA is undefined.
Mathematics