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bazaltina [42]
3 years ago
12

PLEASE HELP you just have to help with a few

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
3 0
<h3><em>Answers:</em></h3><h2 /><h2>1/4 + 2/3 =11/12</h2><h2 /><h2>2/5-1/10= 3/10</h2><h2 /><h2>1/6+1/4=5/12</h2><h2 /><h2>5/8-1/4=3/8</h2><h2 /><h2>7/8-1/2=3/8</h2><h2 /><h2>3/10+4/5=11/10 or 1 1/10</h2><h2 /><h2>5/6-2/5=3/5</h2><h2 /><h2>5/12-1/4=1/6</h2><h2 /><h2>7/16+1/8=9/16</h2><h2 /><h2>11/16+5/8=21/16 or 1 5/16</h2><h2 /><h2>2/7+1/2=11/14</h2><h2 /><h2>4/5+3/4=31/20 or 1 11/20</h2>
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Factor the polynomial completely using any method. Show steps.<br> 2d^4-13d^2-45
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Answer:

\huge ( {2d}^{2}  + 5)(d + 3)(d - 3)

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • factoring
  • PEMDAS
<h3>given:</h3>
  • 2d^4-13d^2-45
<h3>let's solve:</h3>

2d^4-13d^2-45

2 {d}^{4}  + 5 {d}^{2}  - 18 {d}^{2}  - 45 \\  {d}^{2} ( {2d}^{2}  + 5) - 9( {2d}^{2}  + 5) \\ ( {2d}^{2}  + 5)( {d}^{2}  - 9 )\\ ( {2d}^{2}  + 5)(d + 3)(d - 3)

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3 years ago
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