CPM Homework Help : CCA Problem 11-23

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Home > CCA > Chapter Ch11 > Lesson 11.1.2 > Problem 11-23

11-23.

How many solutions does each equation below have?

$4x+3=3x+3$
Hint (a):
Solve the equation. Is this a possible situation, an impossible situation, or a situation that is always true?
Answer (a):
1 solution

$3(x−4)−x=5+2x$
Hint (b):
Simplify this equation before deciding how many solutions there are. Then see the help for part (a).

$(5x−2)(x+4)=0$
Hint (c):
How many different roots does this quadratic have?
Answer (c):
2 solutions

$x^2−4x+4=0$
Hint (d):
Start by factoring this quadratic.

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