Answer: x is -3
Step-by-step explanation: collecting like terms: 10+5×=5-10×
Answer: median
Step-by-step explanation: In this situation the mean is widely preferred as the best measure of central tendency because it is the measure that includes all the values in the data set for its calculation
4(8x - 8) = -192
32x - 32 = -192
+32 +32
-----------------------
32x = -160
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32 32
Answer: x = -5
D is a pythagorean triple
Answer:
x⁴ + 3x³ + 4x² + 12x = 0
<=> x³(x + 3) + 4x(x + 3) = 0
<=> (x³ + 4x)(x + 3) = 0
<=> x(x² + 4)(x + 3) = 0
