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Answered

suppose that four times the square of a number equals 20 times that number what is the number

Sagot :

Mocaprapochinokabalygo

Answer:

20

Step-by-step explanation:

kasi naka by word yung tanong mo at ang number lang naman sa tanong mo is 20 kaya its 20

Lonaldeugo

Answer:

x = 20,0

Step-by-step explanation:

Question: [tex]x^{2} = x*20[/tex]

Rearrange: [tex]x^{2} -(x*20) = 0[/tex]

Multiply: [tex]x^{2} -20x=0[/tex]

a=1 b=-20 c=0

Quadratic: [tex]x=\frac{-(-20)±\sqrt{(-20)^{2}}-4*1*0}{2*1}[/tex]

Simplify: [tex]x=\frac{20±20}{2}[/tex]

So: [tex]x=\frac{20+20}{2}[/tex] and [tex]x=\frac{20+20}{2}[/tex]

Answer is x = 20,0

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