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san4es73 [151]
2 years ago
13

6a*2-a-15 factoring and soulutions

Mathematics
1 answer:
eduard2 years ago
4 0
6a(2)-a-15
=12a+-a+-15
Combine Like Terms:<span>=<span><span><span>12a</span>+<span>−a</span></span>+<span>−15</span></span></span><span>=<span><span>(<span><span>12a</span>+<span>−a</span></span>)</span>+<span>(<span>−15</span>)</span></span></span><span>=<span><span>11a</span>+<span>−15</span></span></span>Answer:<span>=<span><span>11a</span>−15</span></span> <span>

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⟹

⟹

⟹

⟹

x

2

+y

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x

2

+y

2

+10x−4y+25+4−49

x

2

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(x+5)

2

+(y−2)

2

=

=

=

=

=

0

0

49

49

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From this, we get two things:

\begin{gathered}\begin{aligned}1.&\ \ \textsf{Center of the circle is $(-5,\ 2)$.}\\ \\ 2.&\ \ \textsf{Radius of the circle is $\bold{7}$ units. }\end{aligned}\end{gathered}

1.

2.

Center of the circle is (−5, 2).

Radius of the circle is 7 units.

Hence the radius is 7 units.

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