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3 years ago

Simplify (5x^2+3x+4)+(5x^2+5x-1)

Mathematics

2 answers:

a_sh-v [17]3 years ago

7 0

Answer:

10x^2+8x+3

Step-by-step explanation:

MakcuM [25]3 years ago

4 0

Answer:

10x^2 + 8x + 3

Step-by-step explanation:

Hope this helps.

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4 years ago

Transform the given quadratic function into vertex form f(x) = quadratic function into vertex form f(x) = quadratic function int

vesna_86 [32]

Answer:

$f(x) = 3(x -\frac{2}{3})^2 -\frac{22}{3}$

The vertex is $(\frac{2}{3}, -\frac{22}{3})$

Step-by-step explanation:

For a general quadratic function the form is:

$ax ^ 2 + bx + c$

For the function

$f(x) = 3x ^ 2 -4x -6$

Take common factor 3.

$f(x) = 3(x ^ 2 -\frac{4}{3}x - 2)$

The values of the coefficients for the function within the parenthesis are the following: $a = 1$ , $b = -\frac{4}{3}$ , $c = -2$

Take the value of b and divide it by 2. Then, the result obtained squares it.

$\frac{b}{2}= -\frac{2}{3}$

$(\frac{b}{2})^2=\frac{4}{9}$

Add and subtract $\frac{4}{9}$

$f(x) = 3([x ^ 2 -\frac{4}{3}x +\frac{4}{9}]- 2-\frac{4}{9})$

Write the expression of the form

$f(x) = (x-\frac{b}{2})^2 +k$

$f(x) = 3(x -\frac{2}{3})^2 -\frac{22}{3}$

The vertex is $(\frac{2}{3}, -\frac{22}{3})$

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3 years ago

Find all real solutions of the equation. (if there is no real solution, enter no real solution.) 8x2 + 6x − 9 = 0

Arturiano [62]

Hey there !

Check the attachment.
Hope it helps you :)

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3 years ago

I honestly just need help and nones helping 6th grade work

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Length times width so that would be 21

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