Solve the equation by completing the square. round to the nearest hundredth if necessary. x2 + 3x = 25

we are given

We can complete square

we can write it as

now, we can add both sides (3/2)^2

now, we can use formula

we can write it as

now, we can take sqrt both sides

we will get as

first solution:

Second solution:

so, solutions are

................Answer

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.