3 years ago

Factor this polynomial 8a^2+2a-6

Mathematics

1 answer:

Naddik [55]3 years ago

7 0

2(4a^2 +a +3)
Factor out the 2

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Please explain I will also give BRAINLIEST

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Answer:

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Step-by-step explanation:

WARNING IM NOT POSTITIVE ITS RIGHT

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2 years ago

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3 years ago

Point M is in the exterior of an angle AOB, ray OC is a bisector of this angle. Prove, that the measure of angle MOC is equal to

myrzilka [38]

Answer:

see the prove below

Step-by-step explanation:

<u>We have to prove that </u><u>MOC=(AOM+BOM)/2</u>

Let Angle AOM=x and AOC=y . => AOB=2y ( because OC is the bisector of AOB)

So MOC= AOM+AOC=x+y

BOM=AOB+AOM=2y +x

AOM+BOM= x+2y+x=2y+2x

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The statement is proved

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2 years ago

B is between line AC. If AB = x^2– 3x, BC = 9x, and AC = 16. Solve for x.

Nana76 [90]

Answer:

x = {- 8, 2}

Step-by-step explanation:

Since, B is between line AC.

$\therefore AB + BC = AC\\\therefore x^2 - 3x + 9x = 16\\\therefore x^2 - 3x + 9x - 16=0\\\therefore x^2 + 6x - 16=0\\\therefore x^2 + 8x - 2x- 16=0\\\therefore x(x +8) - 2(x + 8)=0\\\therefore (x+8)(x-2)=0\\\therefore x + 8 = 0\: or \: x-2=0\\\therefore x = - 8 \:or\: x = 2\\\huge \orange {\boxed {\therefore x = \{-8,\: 2\}}}$

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