Answer:
-1
Step-by-step explanation:
99 is the greatest factor greater than 0, but postive numbers have negative factors too, and negative numbers closer to 0 are greater.
B is definitely between those decimals
So discriminant gives us 3 possibilites connected with result of the equation b^2-4ac. If it is bigger than zero, there are 2 solutions, if answer is exactly 0, then there is one answer and if the number is lower than 0, there are no solutions.
Discriminant of your quadratic equation is (-4)^2-4*1*5=16-20=-4, so there are no solutions.
In logarithm, inverse operations are applied.
Answer: -10x+7.5
Step-by-step explanation:
First multiply -2.5(4x)= -10x and then -2.5x-3= 7.5 it should be -10x+7.5
