4. (Short Answer) You must show all your work and steps to receive a 4 on this problem. You may use a calculator to check your work, but you must provide all the step to find the solution.
Simplify the algebraic expression
x2 - 3(x2 - 6 + 7) + 2(5x² – 3x + 6)

a) 7x=7

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

it’s the first one your welcome

noncoplanar points are points that do not lie on the same line.