Solve the equation by completing the square. round to the nearest hundredth if necessary. x2 + 3x = 25

we are given

We can complete square

we can write it as

now, we can add both sides (3/2)^2

now, we can use formula

we can write it as

now, we can take sqrt both sides

we will get as

first solution:

Second solution:

so, solutions are

................Answer

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl