Can some one help? Please

B

Step-by-step explanation:

Given

x² + 2x + 1 = 17 ( subtract 1 from both sides )

x² + 2x = 16

Using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(1)x + 1 = 16 + 1

(x + 1)² = 17 ← take the square root of both sides

x + 1 = ± ← subtract 1 from both sides

x = - 1 ±

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)

answer: 24

step-by-step explanation:

7x2=14

5x2=10

10+14=24