Note: I'm afraid I can't put the work for the answers, for lack of time =/ ============================================================
1. 0 or -3
2. 0 or 4
3. -2 or 3
4. 0 or 1/2
5. -2 or 3
6. 0 or 5
7. 0 or 7
8. 0 or -2 ============================================================
9. Substitute 0 for h in "h = -16x^2 + 16x" then solve for x 0 = -16x^2 + 16x
<span>Subtract -16x^2+16x from both sides. </span><span>0−<span>(<span><span>−<span>16x2</span></span>+16x</span>)</span></span>=<span><span><span>−<span>16<span>x2</span></span></span>+<span>16x</span></span>−<span>(<span><span>−<span>16x2</span></span>+16x</span>) </span></span><span><span>16<span>x2</span></span>−<span>16x</span></span>=<span>0 </span> Factor the left side of the equation <span><span>16x</span><span>(<span>x−1</span>)</span></span>=<span>0 </span> Set factors to equal 0 <span><span>16x</span>=<span><span><span>0<span> or </span></span>x</span>−1</span></span>=<span>0 </span>x = 0 or x = 1
