3 years ago

What is an equvilent fraction for 7x plus 4x plus 3 minus 1

1 answer:

6 0

6x plus 3x plus 4 minus 2

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vaieri [72.5K]

-6y+y2+3-4y2-7+1-4y in simplified form is -10y-3y^2-3

5 0

2 years ago

nlexa [21]

Well for every fluid ounce, there is .125 of a cup.

54*.125=6.75

7 0

3 years ago

elena-s [515]

2/5=×/23=9.2 gallons wasted

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3 years ago

ruslelena [56]

Do you understand?? :D

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4 years ago

Leokris [45]

Answer:

A, C, E

Step-by-step explanation:

By analyzing the graph, we can see that the roots are $-2$ and $-4$ .

We now want to find all equations of the form $(x-(-2))(x-(-4))=(x+2)(x+4)=0$ .

This immediately gives C as 1 answer.

We can expand our equation to find other possible solutions!

By the FOIL method: $(x+2)(x+4)=(x)(x)+(2)(x)+(4)(x)+(2)(4)=x^2+6x+8=0$

We can then divide both sides of the equation to find that $-x^2-6x-8=0$ , so A is another answer.

We can complete the square on $x^2+6x+8$ to find the last possible solution.

$x^2+6x+8=x^2+6x+9-9+8=x^2+6x+9-1=(x+3)^2-1=0$ .

We can then multiply both sides of the equation by $4$ to find that $4(x+3)^2-4=0$ , so E is the last answer.

The proof that the other answers don't work is left as an exercise.

So, the answers are A, C, and E, and we're done!

7 0

3 years ago