How do i solve 7x² - 20x = 3?
i need to know how to solve, not just the answer.
giving brainliest + 25 points!

3, -1/7

Step-by-step explanation:

Use the quadratic formula to solve this problem. First make all terms equal to 0, so subtract 3 from both sides of the equation.

7x^2 - 20x - 3 = 0

Substitute the a, b, and c values into the quadratic formula: . In this equation:

Simplify this expression until you get to where you have to split the expression off into a positive and negative case.

Now split this into + and -:

Solve the positive case first.

Solve the negative case next.

These are the two solutions to the quadratic equation.

y/x=18

step-by-step explanation:

(a) {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …}

(b) $59 398

step-by-step explanation:

(a) the annual sequence of profits

aₙ = a₁rⁿ⁻¹

the model for the sequence of profits is {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …} .

(b) profit after 15 yr

  a₁ = $ 30 000

  r = 1.05

a₁₅ = 30 000 × 1.05¹⁴

a₁₅ = 30 000 × 1.979 93

a₁₅ = $59 398

the profit in year 15 will be $59 398.