Which statement describes the first step to solve the equation by completing the square?

4x^2+16x=20

multiply both sides of the equation by 1/4 .

add 8 to each side of the equation.

multiply both sides of the equation by 1/8 .

add 64 to each side of the equation.

Multiply both sides of the equation by

Step-by-step explanation:

we have

Step 1

Multiply both sides of the equation by

Step 2

Complete the square. Remember to balance the equation by adding the same constants to each side

Step 3

Rewrite as perfect squares

Step 4

Square root both sides

therefore

the answer is

Multiply both sides of the equation by

answerthe vertex form

step-by-step explanation:

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500