Use a method of your choice to solve the equation.x2 + 4x - 21 = 0
A. x = -3 or x = 7
B. x = 3 or x = -7
C. x = 3or x = 7
D. x = -3 or x = -7
Answer: B
Mathematics
You might also like to view...
Express the number in scientific notation..000000054906
A. 5.4906 x 108 B. 5.4906 x 10-9 C. 5.4906 x 10-8 D. 5.4906 x 10-7
Mathematics
Simplify the expression.(-13)0 + (-3)0
A. 0 B. -16 C. 2 D. -2
Mathematics
Answer the question.Is 191 Divisible by 3?
A. Yes B. No
Mathematics
Simplify.(10x3)3
A. 10x9 B. 10x3 C. 1000x27 D. 1000x9
Mathematics