michellewilliam michellewilliam

08-09-2014
Mathematics

Answered

solve the problem. give that f(x)=4x²-7x;find all values of a such that f(a)=15 HELP!!!

Verified Answer :

konrad509 konrad509

08-09-2014

\(4x^2-7x=15\\ 4x^2-7x-15=0\\ 4x^2-12x+5x-15=0\\ 4x(x-3)+5(x-3)=0\\ (4x+5)(x-3)=0\\ x=-\frac{5}{4} \vee x=3\)

Answer Link

Related Questions

In carrying out market research for a locality you collect data on income levels life style characteristics percentages of home owners and average age You are c

What would be a good way to prevent communicable disease such as a common cold

Solve 2cos2x cosx 1 0 for x over the interval 0 2 π aπ and π3 bπ π3 and 5π3 c1 and 2π3 d1 2π3 and 4π3 e1 π3 and 5π3

Nutrients and waste both enter and leave cells through a process called

Which of Jacobo Arbenz Guzmáns policies most infuriated United Fruit and led to a CIA undercover mission to remove him from power A land reform B labor reform C

The feudal system probably would not have developed if the Roman Empire continued Why Europe would not have been considered worthy of attack by invaders The emp

what happens to the female sex cell that has left the ovary if it isnt fertilised

In Russia which of the following occurred after the global financial crisis in 1998 a Large areas of farmland were bought back from foreign investors b Russia b

x2 8 0 please show all work

your boss estimates it take 42 person hours to rearrange the floor plan for the produce department at a local grocery store Your boss would like to complete the

Web Analytics