algebra placement test review with complete soluti
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ALGEBRA PLACEMENT TEST REVIEW WITH
COMPLETE SOLUTIONS 100% 2023/2024
Solving for variables
Ex: (2x^3 y)(6x^2 y^4)
Remove parentesess
Group
Solve
2x^3 y6x^2 y^4
(2•6)(x^3•x^2)(y•y^4)
(12)(x^5)(y^5)
12x^5 y^5
Solving Algebraic expressions
Solve for exponents
Group like terms
Solve
Negative exponents
Negative exponents are dividing instead of multiplying
Ex:
5^-2=
11
---- = ----
5^2 25
Systems of equations word problem
The equations are
x+y= total
ax+bx=cost
a and b= quantity
Elimination
Eliminate a variable to solve for one, then plug in the number to solve for the other
Point slope form
y-y[1]=m(x-x[1])
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