Answer:
50
Step-by-step explanation:
add them all up and divide by 5
x = 0 or x = -2
x^4+8x=0
Step 1: Factor left side of equation.
x(x+2)(x2−2x+4)=0
Step 2: Set factors equal to 0.
x=0 or x+2=0 or x2−2x+4=0
x=0 or x=−2
Anna is sick
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5
120
20
