Answer:
o.90309x^2 + 4.51545x + 12.64326
Step-by-step explanation:
Answer: x=−5 or x=5
−3x4+27x2+1200=0
Step 1: Factor left side of equation.
−3(x2+16)(x+5)(x−5)=0
Step 2: Set factors equal to 0.
x2+16=0 or x+5=0 or x−5=0
x=−5 or x=5
