Solving a Radical Equation with Absolute Values
Solve the equation
$$\sqrt{16*t^2+48*t+36}-\frac{4*t+6}{\sqrt{t^2+3*t+2.25}}=\frac{t}{2}$$
for $$t.$$
| Expression | Simplification |
|---|---|
| $$\sqrt{16*t^2+48*t+36}$$ | $$|4*t+6|$$ |
| $$\sqrt{t^2+3*t+2.25}$$ | $$|t+1.5|$$ |
| Assuming $$t> -1.5$$, we have: | $$|4*t+6|=4*(t+1.5)$$ and $$|t+1.5|=t+1.5$$ |
| Equation reduction | Leads to: $$4*(t+1.5)-4=\frac{t}{2}$$ |
A
$$t=-\frac{4}{7}$$
B
$$t=\frac{4}{7}$$
C
$$t=-\frac{2}{3}$$
D
$$t=\frac{2}{3}$$
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