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4 years ago

What value for x makes the equation true?

Mathematics

1 answer:

fgiga [73]4 years ago

8 0

Since we already have 3^7 you should know that 3 times 3 is 9. Here is how I would simplify it.

3^7 times 3^4 times 3^3

You should add all the exponents and get

3^14

27 is basically 3 times 3 times 3 which is why I chose to put 27 that way

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Solve this problem out

Phoenix [80]

Solving the equation $2x^2-12x+6=0$ using completing square method we get $(x+3)^2=6$

So, Option A is correct.

Step-by-step explanation:

We need to solve the equation $2x^2-12x+6=0$ using completing square method.

Solving using completing square method

$2x^2-12x+6=0$

For completing the square we need to make formula a^2-2ab+b^2=(a-b)^2

Divide the equations by 2

$x^2-6x+3=0$

Adding and subtracting (3)^2 on both sides.

$(x)^2-2(x)(3)+(3)^2-9+3=0$

$(x+3)^2-6=0$

$(x+3)^2=6$

Solving the equation $2x^2-12x+6=0$ using completing square method we get $(x+3)^2=6$

So, Option A is correct.

Keywords: Solving Quadratic Equation

Learn more about Solving Quadratic Equation at:

#learnwithBrainly

7 0

4 years ago

Solve for y. 8y -11y – -2 = -16 y =

polet [3.4K]

8y - 11y - -2 = -16
-3y + 2 = -16
-3y = -16 - 2 = -18
y = -18/-3 = 6
y = 6

5 0

3 years ago

A principal of #1000 is invested at an 8% annual rate of interest.What will be the accrued interest after 6years

kondaur [170]

I=PRT
1000*.008=80
80*6=480

After 6years 480 bucks accrued interest

5 0

4 years ago

What is the difference of 21 15/16 minus 18 3/4 ?

Advocard [28]

$21 \frac{15}{16}-18 \frac{3}{4}=21 \frac{15}{16} - 18 \frac{3 \times 4}{4 \times 4}=21 \frac{15}{16}-18 \frac{12}{16}=\boxed{3 \frac{3}{16}}$

5 0

4 years ago

How to graph -4x+6y=12

ratelena [41]

First u would out it in slope intercept form which would be y=2/3x+2 then u would graph it
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6 0

4 years ago