1. **State the problems:** Solve the quadratic equations from 29 to 36.
2. **Recall the quadratic formula:** For any quadratic equation $ax^2 + bx + c = 0$, the solutions are given by
$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
3. **Solve each equation step-by-step:**
**29.** $m^2 + 3m + 2 = 0$
- Factor: $(m + 1)(m + 2) = 0$
- Solutions: $m = -1, -2$
**30.** $n^2 - 9n + 18 = 0$
- Factor: $(n - 3)(n - 6) = 0$
- Solutions: $n = 3, 6$
**31.** $x^2 + 5x - 14 = 0$
- Factor: $(x + 7)(x - 2) = 0$
- Solutions: $x = -7, 2$
**32.** $y^2 + 11v - 26 = 0$
- Assuming typo, replace $v$ with $y$: $y^2 + 11y - 26 = 0$
- Use quadratic formula:
$$y = \frac{-11 \pm \sqrt{11^2 - 4 \times 1 \times (-26)}}{2} = \frac{-11 \pm \sqrt{121 + 104}}{2} = \frac{-11 \pm \sqrt{225}}{2}$$
- Simplify:
$$y = \frac{-11 \pm 15}{2}$$
- Solutions:
$$y = \frac{-11 + 15}{2} = 2, \quad y = \frac{-11 - 15}{2} = -13$$
**33.** $t^2 + 15t = -36$
- Rewrite: $t^2 + 15t + 36 = 0$
- Factor: $(t + 3)(t + 12) = 0$
- Solutions: $t = -3, -12$
**34.** $n^2 - 5n = 24$
- Rewrite: $n^2 - 5n - 24 = 0$
- Factor: $(n - 8)(n + 3) = 0$
- Solutions: $n = 8, -3$
**35.** $a^2 + 5a - 20 = 30$
- Rewrite: $a^2 + 5a - 50 = 0$
- Use quadratic formula:
$$a = \frac{-5 \pm \sqrt{5^2 - 4 \times 1 \times (-50)}}{2} = \frac{-5 \pm \sqrt{25 + 200}}{2} = \frac{-5 \pm \sqrt{225}}{2}$$
- Simplify:
$$a = \frac{-5 \pm 15}{2}$$
- Solutions:
$$a = \frac{-5 + 15}{2} = 5, \quad a = \frac{-5 - 15}{2} = -10$$
**36.** $y^2 - 2y - 8 = 7$
- Rewrite: $y^2 - 2y - 15 = 0$
- Factor: $(y - 5)(y + 3) = 0$
- Solutions: $y = 5, -3$
Quadratic Solutions 4Cf2Bf
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