What equation results from completing the square and then factoring? X^2 + 10x= 15
A. (x + 10)^2 = 40
B. (x + 5)^2 = 40
C. (x+ 5)^2 = 15
D. (x+ 10)^2 = 15

B

Step-by-step explanation:

Given

x² + 10x = 15

To complete the square

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

x² + 2(5)x + 25 = 15 + 25, that is

(x + 5)² = 40 → B

Step-by-step explanation:

Add on both sides.

Factor left side of the equation.

the answer is d. (1.2, -4.7) on edgn

hope this !

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it