3 years ago

Complete the table by providing justification for each step of the proof. Conjecture: If 4(x2 – 2) = 28, then x is 3 or –3

1 answer:

5 0

<span>4(x2 – 2) = 28
4x^2-8=28 Distributive law of multiplication

4x^2+8=28+8 Additive identity
4x^2=36 ; adding 8 to both sides
x^2 =9, dividing both sides by 4
x= +/- 3</span>

You might be interested in

In january of one winter, 3/10 of a wood pile was used in a wood stove. In February, 2/5 of the wood pile was used. What part of

arsen [322]

2/5 is equivalent to 4/10 so at the end of February 4/10 was used up
And at the end of January, 3/10 was used
so 4/10 + 3/10 = 7/10

At the end of February, 7/10 of the wood was used

6 0

3 years ago

How many movies, m, can she download for $50?

TiliK225 [7]

How much does it cost for one movie

6 0

3 years ago

Help me *welp

ira [324]

Answer:

3332

Step-by-step explanation:

6 0

3 years ago

Does favorite food depend on your gender? A survey asks a group of college students about their favorite foods. It also groups t

Oxana [17]

Answer:

Yes, it does

Step-by-step explanation:

More Men like the Pizza and Hambugers more than the girls. Both like shushi Equaly but 2 beats 1 am a right.

7 0

2 years ago

Is 6740 divisible by 3 and 10

Aloiza [94]

I hope this helps you

6740/10=674

6740/3=2,246666

7 0

2 years ago