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kolezko [41]
3 years ago
10

HURRY NEED ASAP TRYNA FINISH SUMMER SCHOOL LOL, I WILL MARK BRAINLIEST :)) PICTURE IS THERE FOR U

Mathematics
2 answers:
lana66690 [7]3 years ago
6 0

Answer:

B.

Step-by-step explanation:

Since the numbers in the root is all the same, lets say \sqrt{2} is a variable.

7x\sqrt{2} - 4\sqrt{2} + x\sqrt{2}

Group with like terms:

7x\sqrt{2} + x\sqrt{2} - 4\sqrt{2}

Combine like terms:

8x\sqrt{2} - 4\sqrt{2}

There you have it! Since all the square roots are the same thing, we can treat them like variables.

Eddi Din [679]3 years ago
3 0

the answer is B..................

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3(6x - 4) = 22x
pentagon [3]
First expand the brackets 18x-12=22x and then you move the 18x to the other side so 12=22x-18x 12=4x. 3=x
5 0
3 years ago
Use the table to identify the values of p and that should be used to factor x2
bija089 [108]

Answer:

C

Step-by-step explanation:

x² + 3x - 10

p + q needs to equal the b-value.

Since b = 3, then the sum of p = -2 and q = 5 works.

⇒ (x - 2)(x + 5)

6 0
3 years ago
Read 2 more answers
Give the excluded values for the rational equation.<br><br> (3x)/(x-4)-(x+3)/(x+4)=(2x+7)/(x^(2)-16)
scoray [572]

\frac{3x}{x-4}  - \frac{x+3}{x-4} = \frac{2x+7}{x^2-16}

We factor the denominators

Factor x^2 - 16

x^2 - 4^2

We use a^2 - b^2 = (a+b)(a-b)

so x^2 - 4^2 = (x+4)(x-4)

Replace it in the given equation

\frac{3x}{x-4}  - \frac{x+3}{x-4} = \frac{2x+7}{(x+4)(x-4)}

Excluded values are the values that makes the denominator 0

we have (x-4)  and (x+4) in the denominator

We set the denominator =0 and solve for x

x-4 =0

Add 4 on both sides

x= 4

x+4=0

subtract 4 onboth side

so x= -4

Excluded values are x=-4 and x=4




8 0
3 years ago
Read 2 more answers
Please help me with this questions
zalisa [80]
He messed up step 2 he added instead of multiplying
4 0
2 years ago
What is the solution to 2x^2+8x=x^2-16?<br> x=4<br> x=22<br> x=2<br> x=4
Taya2010 [7]

Answer:

x = -4

Step-by-step explanation:

2x² + 8x = x² - 16

x² + 8x + 16 = 0

x² + 4x + 4x + 16 = 0

x(x + 4) + 4(x + 4) = 0

(x + 4)² = 0

x = -4

4 0
3 years ago
Read 2 more answers
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