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3 years ago

Solve for x in the equation x squared + 4 x minus 4 = 8.

Mathematics

1 answer:

densk [106]3 years ago

3 0

9squared=3(x)

81=3x

x=27

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Let a and b 2 positive real number such that a

lilavasa [31]

Answer:

Proved

Step-by-step explanation:

Given

Integers: a and b

Where $a < b$

Required

Show that $a^n < b^n$

We start by writing out the given expression

$a < b$

Then, take nth root of both sides

$a^n < b^n$

For instance:

Let a = 2, b = 2 and n = 4

First

Since $2 < 3$

Then

$2^4 < 3^4$

$16 < 81$

Proved

<em>This is so for all positive values of a,b and n where a < b</em>

7 0

3 years ago

Multiplying a trinomial by a trinomial follows the same steps as multiplying a binomial by a trinomial. Determine the degree and

Veseljchak [2.6K]

Degree = 4

Maximum possible number of terms for = 5

Solution:

Given expression:

$\left(x^{2}+x+2\right)\left(x^{2}-2 x+3\right)$

To multiply the trinomial by a trinomial:

$\left(x^{2}+x+2\right)\left(x^{2}-2 x+3\right)$

Multiply each of the first term by the each of the second term.

$=x^{2}(x^{2}-2 x+3)+x(x^{2}-2 x+3)+2(x^{2}-2 x+3)$

$=(x^{4}-2 x^3+3x^2)+(x^{3}-2 x^2+3x)+(2x^{2}-4 x+6)$

Remove the brackets and arrange the terms with same powers together.

$=x^{4}-2 x^3+x^{3}+3x^2-2 x^2+2x^{2}+3x-4 x+6$

$=x^{4}- x^3+3x^2- x+6$

The product of the trinomials is $x^{4}- x^3+3x^2- x+6$ .

Degree is the highest power of the variable.

Degree = 4

Maximum possible number of terms for = 5

3 0

3 years ago

Read 2 more answers

Use the equation and type the ordered-pairs. y=3^x

aleksandrvk [35]

The ordered pairs of the equation y = 3^x are (0,1), (1,3) and (2,9)

<h3>How to type the ordered pairs?</h3>

The equation is given as:

y = 3^x

Let x = 0, 1 and 2

y = 3^0 = 1

y = 3^1 = 3

y = 3^2 = 9

So, we have the following ordered pairs (0,1), (1,3) and (2,9)

Hence, the ordered pairs of the equation y = 3^x are (0,1), (1,3) and (2,9)

Read more about exponential functions at:

brainly.com/question/2456547

#SPJ1

7 0

2 years ago

Explain how you can solve 8x8 if you know how to multiply with 4 but not how to multiply with 8

Mice21 [21]

You can add 8, eight times

7 0

4 years ago

5 1/4 divided by 2 3/8

vekshin1

Answer:

$\frac{42}{19}$ or $2 \frac{4}{19}$

Step-by-step explanation:

5 1/4 divided by 2 3/8 basically means $5 \frac{1}{4}$ ÷ $2\frac{3}{8}$ . Reduce the expression by cancelling the common factors.

7 0

3 years ago