# Use completing the square to solve (x – 12)(x + 4) = 9 for x. x = –1 or 15 x = 1 or 7

4.

step-by-step explanation:

it have the same area.brainliest

let's solve your equation step-by-step.

24−3x=−27

step 1: simplify both sides of the equation.

24−3x=−27

24+−3x=−27

−3x+24=−27

step 2: subtract 24 from both sides.

−3x+24−24=−27−24

−3x=−51

step 3: divide both sides by -3.

−3x

−3

=

−51

−3

x=17

answer:

x=17

step-by-step explanation:

mark brainliest and have a great day!

Explanation:

x^2 - 6x + 5 = 0

(x^2 - 6x + 9) + 5 - 9 = 0

(x - 3)(x - 3) - 4 = 0

(x - 3)^2 = 4

x - 3 = +-2 (sqrt both sides)

x - 3 = 2

x = 5

x - 3 = -2

x = 1

open brackets first,

X²+4x-12x-48=9

x²-8x-48-9=0

x²-8x-57=0

x²-8x=57

x²-8x-4²=57-4²

(x-4)²=57-16

(X-4)²=41

√(x-4)²=+ or -√41

x=4+√41 or x=4-√41

x=4+6.403 or x=4-6.403

x=10.403 or -2.403

x≈ 10.4 or -2.4

x= 10.43398113 , -8.43398113

we have

Group terms that contain the same variable, and move the constant to the opposite side of the equation

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

Rewrite as perfect squares

therefore

the answer is

The answer is C..

x=1+/- the square root of 89

I am pretty sure it is C

Step-by-step explanation:

photomath

Given the equation:

Then;

Using the distributive property,

Combine like terms;

Subtract 25 from both sides we have;

Using completing square form:

Add and subtract we have;

⇒

Add 89 to both sides we have;

⇒

Taking square root both sides we get;

Add 1 to both sides we have;

Therefore, the values of x are:

and

The answer is D.

x² + 4x - 12x - 48 = 9

x² - 8x - 48 = 9 |add 48 to both sides

x² - 8x = 57

x² - 2x · 4 = 57 |add 4² to both sides

x² - 2x · 4 + 4² = 57 + 4² |use (a - b)² = a² - 2ab + b²

(x - 4)² = 57 + 16

(x - 4)² = 73 ⇔ x - 4 = √73 or x - 4 = -√73 |add 4 to both sides

x = 4 + √73 or x = 4 - √73

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