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3 years ago

Simplify expression 4x+2x+3x

Mathematics

2 answers:

AlexFokin [52]3 years ago

8 0

Answer:

Step-by-step explanation:

Birds of a feather flock together. Everything that ends in x u add together and then that’s your answer just don’t forget the x after the answer always.

Llana [10]3 years ago

4 0

Answer: 7x

Step-by-step explanation: To simplify this expression, we can combine the the x's since both terms contain an x and add them together.

We can do this by just adding their coefficients.

Since 4 + 2 + 3 is 7, 4x + 2x + 3x = 7x.

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Tems11 [23]

Step-by-step explanation:

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3 years ago

Rewrite the quadratic function in vertex form.<br> Y=3x^2-12x+4

chubhunter [2.5K]

Answer:

$\large\boxed{y=3(x-2)^2-8}$

Step-by-step explanation:

The vertex form of an equation of a parabola y = ax² + bx + c:

$f(x)=a(x-h)^2+k$

(h, k) - vertex

$h=\dfrac{-b}{2a},\ k=f(h)$

We have the equation:

$y=3x^2-12x+4\\\\a=3,\ b=-12,\ c=4$

Substitute:

$h=\dfrac{-(-12)}{2(3)}=\dfrac{12}{6}=2\\\\k=f(2)=3(2^2)-12(2)+4=3(4)-24+4=12-24+4=-8$

Finally:

$y=3(x-2)^2+(-8)=3(x-2)^2-8$

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Dimas [21]

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Step-by-step explanation:

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