Question

Write the quadratic equation in standard form: minus, 2, x, squared, minus, 6, x, equals, 15 −2x 2 −6x= 15

Answer 1

The quadratic equation in standard form is x² - 2x - 21 = 0.

Step-by-step explanation:

The given quadratic equation is:

x² - 2x - 6 = 15

To write the quadratic equation in standard form, we need to move all the terms to one side of the equation, so that the equation is equal to zero:

x² - 2x - 6 - 15 = 15 - 15

x² - 2x - 21 = 0

Therefore, the quadratic equation in standard form is x² - 2x - 21 = 0.