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Tanya [424]
2 years ago
10

How to solve 45y to the second power plus 15y minus 10 ?

Mathematics
1 answer:
Lerok [7]2 years ago
4 0

Answer:

Either y =\frac{-2}{3} or, y =\frac{1}{3}

Step-by-step explanation:

We have to solve the following quadratic equation  

45y² + 15y - 10 =0

Now, dividing both sides with 5 we get, 9y² + 3y -2 =0

Hence, to solve the above equation we have to factorize the left-hand part of the equation.

So, 9y² + 3y - 2 =0

⇒ 9y² +6y -3y -2 =0

⇒ (3y +2) (3y -1 ) =0

⇒ Either (3y +2) =0 or (3y -1) =0

⇒ Either y =\frac{-2}{3} or, y =\frac{1}{3} (Answer)

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What is 9/16 x 12/13 and 7/10 x 5/28
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Answer:

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Step-by-step explanation:

1.

9 / 16 * 12/13

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Simplify:

27/52


2.

7 / 10 * 5 / 28

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Read 2 more answers
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