Answer:
The roots are +/- 5 and +/- 4i or 5, -5, 4i, -4i
Step-by-step explanation:
Begin by dividing through by - 3
-3x^4 / - 3 + 27x^2/-3 + 1200/-3 = 0
x^4 - 9x^2 - 400 = 0 This makes it easier to work with. Substitute
z = x^2
z^2 - 9z - 400 = 0 Factor
(z - 25)(z + 16) = 0 Put the x^2 back in
(x^2 - 25)(x^2 + 16)
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Factor x^2 - 25 using the difference of squares.
(x^2 - 25) = (x + 5)(x - 5)
x = +5 and x = - 5
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Factor x^2 + 16
x^2 + 16 = 0
x^2 = - 16 Take the square root of x^2 and -16
x = sqrt(-16)
x = +4i, x = - 4i
Answer
The roots are +/- 5 and +/- 4i
Answer:
Step-by-step explanation:
2:7
sum of ratio=2+7=9
concentrate=2/9 ×450=100 ml
water=7/9×450=350 ml
Here you are Write<span> an absolute value equation </span>representing<span> the following; then ... both </span>x's<span> will be </span>7<span> units away from -3. if you do this correctly, you will find that </span>x<span> to the left is equal to -</span>10<span> and</span>x<span> to the right is equal to 4.</span>
Answer:
y = 1/2x
Step-by-step explanation:
Convert the equation to slope intercept form by isolating y
x - 2y = 0
Subtract x from both sides
-2y = -x
Divide each side by -2
y = 1/2x
So, the equation in slope intercept form is y = 1/2x