Answer:
ok ok
Step-by-step explanation:
If you would like to solve 16x^2 - 81 = 0, you can calculate this using the following steps:
<span>16x^2 - 81 = 0
</span>(4x - 9) * (4x + 9) = 0
1. 4x - 9 = 0 ... 4x = 9 ... x = 9/4
2. 4x + 9 = 0 ... 4x = - 9 ... x = - 9/4
The correct result would be: <span>x = 9 over 4, x = −9 over 4.</span>
<h2> 56 − 7 + ( 26 − 4 ) ÷ 2</h2>
<h2>56 - 7 + 22 ÷2</h2>
<h2>56 -7 + 11</h2>
<h2>67 - 7</h2>
<h2>60</h2>
<span><span>If you would like
to </span>divide 42 in the ratio of 1 : 2 : 3, you can do this using the following
two steps:<span>
<span>First, add the numbers: </span>1 + 2 + 3 = 6
<span>Second, divide and multiply: 1</span> / 6 * 42 = 7
2 / 6 * 42 = 14
3 / 6 * 42 = 21
<span>The result you are looking for is </span>7 : 14 : 21<span>.</span></span></span>
