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Solution for 3x-5=20 equation:
3x - 5 = 20
3x = 20 + 5
3x = 25 (divide both sides by 3 to get x)
3x/3 = 25/3
x = 8.33333333333
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Answer:
Step-by-step explanation:
To isolate the x, we need to multiply both sides by the denominator. For example, in the equation , we can multiply both sides by 2 to get , so x = 3.
Replace the x's values in the equation with 5.
f(5)= -16(x-4) + 225
= -16(1) + 225
= -16 + 225
= 209
The Answer is 209
Answer:
- , 0
Step-by-step explanation:
8x⁴ + x = 0
factor out x:
x(8x³ + 1) = 0
The zero product property says that one of the terms needs to be equal to 0:
x = 0
8x³ + 1 = 0
Solve for x in the 2nd equation:
8x³ = -1
x³ = -
x = -
When x is either 0 or - , the product will be equal to zero.
The roots are 0 and -