Solve by completing the square.3x2 + 15x = - 18

A. x = - 3, x = - 2
B. x = 2, x = 3
C. x = - , x = 
D. No real solution


Answer: A

Mathematics

You might also like to view...

Fill in the missing factor.18x2 + 29x - 40 = (9x - 8)( )

A. 5x + 2 B. 2x + 5 C. 2x - 5 D. 5x - 2

Mathematics

Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log7.5 77

A. 2.16 B. 10.27 C. 1.89 D. 0.46

Mathematics

Find all real solutions. Do not use a calculator.x3 + 8x2  = x + 8

A. {±1, 8} B. {±1, -8} C. {1, -2, 10} D. {±1, -9}

Mathematics

Evaluate.-  ? 

A. - 
B.
C.
D. - 

Mathematics