How to solve this equation? Please

Mathematics

1 answer:

Shtirlitz [24]3 years ago

7 0

Solve Let's solve your equation step-by-step.5+3.9x−8.15x25x=0
Step 1: Simplify both sides of the equation.−0.326x2+3.9x+5=0
Step 2: Use quadratic formula with a=-0.326, b=3.9, c=5.x=−b±sqrt(b2−4ac)2ax=−(3.9)±sqrt((3.9)2−4(−0.326)(5))2(−0.326)x=−3.9±sqrt(21.73)−0.652x=−1.1680135096973403,13.131203693746418Answer:x=

−1.1680135096973403,13.131203693746418

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Gwar [14]

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4 0

3 years ago

Describe how a power with a zero exponent and a power with a negative exponent can be simplified?

Liono4ka [1.6K]

-----> Any number at all with a 0 exponent is 1; anything with a -ve exponent means "1 over" i.e. 5^-1 means 1/5, 23^-4 means 1/23^4 etc.

----->A number to the power of zero is always 1
A number to the power of a negative number such as 2^-4 is always the reciprocal to the power of 4 so 2^-4 is in fact (1/2) ^4 = 1/2^4 

3^-3/4 is (1/3)^3/4 

(4/9)^-3/5 is (9/4)^3/5


--->Any number with a zero exponent is equal to 1. A number n to the -x is equal to 1/(n^x)

To simplify a negative exponent expression , I attached an example it is easier that way :)

Hope that helps.xoxo