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College of Applied Medical Sciences
Biomedical Technology Department
BMT 222
Second Semester 1422-1423
Test no. 1
Student Name ________________________________
Student Number________________________________
DR Saleh AL-Tayyar
9/1/1422
Question 1. Perform the following operations:
a) (4x2 – 2xy -3y2) - ( 2x2 - 5xy +y2 )
b) (5x2 + 3xy -y2 ) ( 3x2 –xy +2y2)
c)  ( -2xy3) (-3xy2) / (2x2y2)  (x2 y z)
d) y/(x + y) – x/ (x – y)
Question 2. Solve the following questions.
a) Factor the following.
16 a3 b x – 24 b2 x – 8 b x
b) Reduce the following to the lowest term.
( x2 – 2 x + 1) / ( x2 - 1)
c) Simplify the following.
(9 b2 – 4) / ( 2 – 3 b)
d) If n varies inversely as the square root of r, and n = 7 when r =4, find the
value of n when r = 9.
Question 3. Solve the following questions:
a) Find the product and simplify.
(2 x + 10 ) / (3 x - 9) .(12 x – 36) / (5 x + 5) . (a x + a) / (4x +20)
b) Simplify and write the expression in terms of positive exponents only.
( x -2 y -6 z2) / ( x y -1)
c) Solve for the unknown.
(x + 2) /4 – 2/3  (x – 2) /3
Question 4. Answer the following.
a) Find the value of the unknown which makes the proportion a true statement.
5 : (2 + x ) = 7:15
b) Find the equation of the line containing (1,4) and having the same slope as the
line 2x +7y = 8.
c) Solve the following equations.
4x – 5y = 3
x–6=y
d) If the equation of a given line is y = 2x – 6, find
i) the line that is parallel and that passes through (2,2).
ii) the line that is perpendicular and that passes through (2,2).