Home > CCA2 > Chapter 1 > Lesson 1.1.2 > Problem 1-21
1-21.
Given
Calculate
. Substitute
for each in . Simplify.
Solve
. Substitute
for . Subtract
from both sides. Get the
-term alone.
Calculate
. Substitute
for each in . Simplify.
Solve
. Substitute
for . Solve.
No solution.
Solve
. Substitute
for . Solve.
Solve
. Substitute x for
. Solve.
Remember, there should be 2 solutions.
Use the eTool below to solve for each part.
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