Math Tutor.Com
¡Supera tus tareas y exámenes ahora con Quizwiz!
5 - | x + 4| < - 3
- | x + 4| < -8 (to solve you now have to multiply each side by negative 1, which causes the < to switch to > -1 (-1x) + 4 > -8 (-1) (negatives cancel out) so it leaves 1x + 4 > 8 x + 4 > 8
Which number does not have a reciprocal?
0
What is the multiplicative inverse of 1/2?
2
Square root 16 + 3 to the third power over 8?
4 + 2 (because 2 to the third power is 8) = 6
Is the equation 3(2x-4) = -18 equivalent to 6x - 12 = -18?
Use distributive property-6x-12 equivalent to 6x -12 = -18 So yes the equations are equivalent by the distributive property of multiplication over addition.
What is the solution? 2x-3=5
x = 4 x = -1
