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aalyn [17]
3 years ago
12

What are the solutions of the equation (x - 6) (x - 8) =8

Mathematics
1 answer:
enot [183]3 years ago
8 0

Answer:

x=4  x=10

Step-by-step explanation:

(x - 6) (x - 8) =8

We need to multiply out the left side

x^2 -8x -6x+48 = 8

x^2 -14x +48 = 8

Subtract 8 from each side

x^2 -14x +48-8 = 8-8

x^2 -14x+40 =0

We need to factor the left side.  What two numbers multiply to give 40 and add to give -14

-4*-10 = 40

-4+-10 = -14

(x-4) (x-10) =0

Using the zero product property

x-4=0  x-10 =0

x=4  x=10


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Taille LHRISTINE
BartSMP [9]

Answer:

-5 = x

Step-by-step explanation:

7(4x + 9) - 10 = -87 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: + \: 10 \: \: \: \: + 10 \\ \\ \frac{7(4x + 9)}{7} = -\frac{77}{7} \\ \\ 4x + 9 = -11 \\ \: \: \: \: \: \: -\: 9 \: \: \: \: \: - \: 9 \\ \\ \frac{4x}{4} = -\frac{20}{4} \\ \\ x = -5

** The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

5 0
3 years ago
Can someone help me please
Romashka-Z-Leto [24]

Answer:

A) At least 1 Right angle

Step-by-step explanation:

As you can seel all the shapes here have atleast 1 right angle, but all the shapes don't have all the things that the other answer choices are saying.

So hence, your answer is A) At least 1 Right Angle

Thanks!

Mark me brainliest!

6 0
2 years ago
Which expressions are equivalent to each other?
Aneli [31]
B and D if you multiply 13 by z it would be 13z and you can add 5 and 8 because they have the same variable equaling 13z
3 0
2 years ago
At Ralph’s fruit stand 3 apples cost 90 cents. You want to buy 7 apples. How much will they cost ?
MAVERICK [17]

Answer:

$2.10

Step-by-step explanation:

90 divided by 3

=30

30 times 7

=210

210 divided by 10

=2.10

6 0
3 years ago
I don’t understand this at all
postnew [5]
Since it's a circle it's supposed to equal 360 so add 80 + 90= 170 subtract that from 360 that equals 190 so your answer was right. It's none of those
5 0
2 years ago
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