3 years ago

This is combine like Terms 2(3x + 7x) + 20

Mathematics

1 answer:

Semenov [28]3 years ago

3 0

Answer:

10(x + 2) here you go! hope this helps

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maksim [4K]

You have to, use distributive property my dood

5 0

3 years ago

****HELP <br><br>I JUST NEED THE M<1 - M<4 JUSTIFICATIONS THEYRE LISTED IN THE IMAGE.

Yanka [14]

Answer:

122 and 58

Step-by-step explanation:

literally just math.

3 0

3 years ago

Some number plus – 49 is equal to the number divided by 4.

Komok [63]

Answer:

X+(-49)=X/4

Step-by-step explanation:

A number represented by X

plus negative forty-nine

is equal to the number (X) divided by 4

3 0

2 years ago

What is slope how is it calculated

Helen [10]

Slope is the change in Y over the change in X. It is calculated by finding the difference between the y values, and the difference in x values.

3 0

3 years ago

Solve: 12^x2+5x-4 =12^2x+6

lyudmila [28]

Answer:

x=2, x=-5

Step-by-step explanation:

to work more comfortably, the first thing we need to do is work the equation linearly, for that we take advantage of the property of logarithms that tells me that $log(a^{b})=b*log(a)$

in this way, the equation remains as:

$log(12^{x^{2} +5x-4 } )=log(12^{5x+6} ) \\ (x^{2} +5x-4 )*log(12)=(5x+6) *log(12)\\x^{2} +5x-4 = 5x+6$

Now we clear the equation so that it is of the form $ax^{2} +bx+c=0$

$x^{2} +5x-2x=6+4\\ x^{2} +3x-10=0$

finally, we apply the equation to solve second degree equations

$x = \frac{-b \pm \sqrt {b^2-4ac}}{2a}$

$x = \frac{-3 \pm \sqrt {3^2-4*1*(-10)}}{2*1}\\ x = \frac{-3 \pm \sqrt {9+40}}{2}\\ x = \frac{-3 \pm 7}{2}$

x=2 and x=-5

Done

5 0

4 years ago