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VLD [36.1K]
3 years ago
5

49x^2 + 42xy + 9y^2 Factor completely.

Mathematics
2 answers:
Oduvanchick [21]3 years ago
8 0
49x^2+42xy+9y^2

To factor a quadratic of the form ax^2+bx+c, you must find two values, j and k, which satisfy two conditions:

jk=ac=441 and j+k=42, so j and k must be 21 and 21.

Now replace bx with jx and kx in the original equation.

49x^2+21xy+21xy+9y^2  now factor 1st and 2nd pair of terms...

7x(7x+3y)+3y(7x+3y)  which is equal to

(7x+3y)(7x+3y)  which is equal to

(7x+3y)^2
mario62 [17]3 years ago
6 0
(7x-3y)^2 hope this helps
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<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

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More about the linear system link is given below.

brainly.com/question/20379472

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2 years ago
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adoni [48]

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Scale factor 1/2 means divide points by 2

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