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LUCKY_DIMON [66]
3 years ago
15

What is the ans

Mathematics
2 answers:
Dmitrij [34]3 years ago
7 0

1. 12a²b² + -7a²b² + 9a²b²

= 14a²b² (the terms a²b² are like terms so don't look at them, just add 12 + (-7) + 9.

= 14 (ab)² (you can write like this too because both a & b are squared).

2. y² - (-5y²)

= 6y² (subtract -5 from 1, y² is the like term).

makvit [3.9K]3 years ago
6 0

1. <em><u>ANS </u></em><em><u> </u></em><em><u>:</u></em><em><u> </u></em><em><u>1</u></em><em><u>4</u></em><em><u>a</u></em><em><u>²</u></em><em><u>b</u></em><em><u>²</u></em>

<em><u>SOLUTION</u></em><em><u>:</u></em><em><u> </u></em>

  • 12a²b² + -7a²b² + 9a²b² = ( 12 - 7 + 9 ) a²b²
  • = 14 a²b²

2. <em><u>ANS </u></em><em><u>:</u></em><em><u> </u></em><em><u>6</u></em><em><u>y</u></em><em><u>²</u></em><em><u> </u></em>

<em><u>SOLUTION</u></em><em><u> </u></em><em><u>:</u></em><em><u> </u></em>

  • y² - ( -5y² ) = y² + 5y²
  • = y² ( 1 + 5 ) = 6y²

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Answer:

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Step-by-step explanation:

2√24 + 5√54

To combine the radicals first make sure the radicals have the same square root

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<h3>5 \sqrt{54}  = 5 \sqrt{9  \times 6}  = 5 \times  \sqrt{9}  \times  \sqrt{6}</h3><h3>= 5 \times 3 \times  \sqrt{6}</h3><h3>= 15 \sqrt{6}</h3><h3 />

Since they have the same square root we can combine them

That's

<h3>4 \sqrt{6}  + 15 \sqrt{6}  = (4 + 15) \sqrt{6}</h3>

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<h2>19 \sqrt{6}</h2>

Hope this helps you

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