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3 years ago

11

Factorize :(1) x² + 2x + ax + za

2 answers:

sergiy2304 [10]3 years ago

4 0

Answer:

I'm sure you know what factorising is right so we'll group these numbers in groups of 2 so that the first bracket contains x squared plus 2x and the second one contains a x + z a then in the first bracket the common number there is xx will be outside the bracket so that we have x (x+2) then a(x+z)

maria [59]3 years ago

3 0

Answer:

x(x+2) + a(x+z)

Step-by-step explanation:

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One number is 3 less than 4 times a second number. The difference of the first number and twice the second number is 7. What are

Nikolay [14]

Answer:

atq= let no.be x and y

x= 4y-3.......(1)

x-2y=7....(2)

subtracting both eqn

x-x+2y=4y-3-7

2y=4y-10

-2y= -10

y=5 ........second no.

first no...x=7+2y=7+10=17.......first no....

5 0

3 years ago

Which of the following expressions is not equal to X^3?

Musya8 [376]

Answer:

D. x. x^7 . x^-4

Step-by-step explanation:

A. X^5 . X^-4 .X^2=X^(5-4+2)= X^3

B. X^-2 .X^9 .x^-4=X^(-2+9-4)= X^3

C.x^0 . x^10 . x^-7=X^(0+10-7)= X^3

D. x. x^7 . x^-4=X^(1+7-4)= X^4

6 0

3 years ago

Solve for x<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4x%20-%206%7D%7B4%7D%20%20%3D%20%20%5Cfrac%7B2x%20%2B%205%7D%7B3%7

Marizza181 [45]

Answer:

x = 9.5

Step-by-step explanation:

Given

$\frac{4x-6}{4}$ = $\frac{2x+5}{3}$ ( cross- multiply )

3(4x - 6) = 4(2x + 5) ← distribute parenthesis on both sides

12x - 18 = 8x + 20 ( subtract 8x from both sides )

4x - 18 = 20 ( add 18 to both sides )

4x = 38 ( divide both sides by 4 )

x = $\frac{38}{4}$ = 9.5

6 0

4 years ago

(x+15)^2 -10=0 <br> lesser x = ?<br> Greater x = ?

MatroZZZ [7]

Answer:

53

Step-by-step explanation:

3 0

3 years ago

A jeweler is dividing

Anuta_ua [19.1K]

Answer: OPTION D: $\frac{3}{32}$

Step-by-step explanation:

By definiton, fractions have the following form:

$\frac{a}{b}$

Where "a" is called numerator and "b" is the denominator. The numerator and the denominator are Integers.

In order to solve this exercise you need to remember de Division of fractions:

$\frac{a}{b}\div\frac{d}{e}=\frac{a}{b}*\frac{e}{d}=\frac{a*e}{b*d}$

In this case, according to the information given in the exercise, you know that $\frac{3}{8}\ lb$ of rubies are divided into 4 lots.

Therefore, in order to calculate the weight in pounds of each lot, you need to divide $\frac{3}{8}\ lb$ by 4.

Then, you get the following result:

$\frac{3}{8}\ lb\div4=(\frac{3}{8}\ lb) (\frac{1}{4})=\frac{3}{8*4}\ lb=\frac{3}{32} \ lb$

As you can notice, this result matches with the Option D.

5 0

3 years ago