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2 years ago

Factorise 15x + 35y - 40 z

Mathematics

2 answers:

Anna007 [38]2 years ago

6 0

5(3x+7y-8z)

Factor out the common number

xxTIMURxx [149]2 years ago

4 0

Put number five as a common factor.

15x + 35y + 40z = 5 . 3x + 5 .7y + 5 .8z

= 5 . ( 3x + 7y + 8z )

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wlad13 [49]

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3 years ago

Factor 5x^2+26x+24 ?

SashulF [63]

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RUDIKE [14]

Answer:187.2

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3 years ago

Calculer x si (x+1/2)^2= 4/9

-Dominant- [34]

Answer:

$x=-\frac{7}{6}\\x=\frac{1}{6}$

Step-by-step explanation:

The equation to solve is:

$(x+\frac{1}{2})^2=\frac{4}{9}$

To get rid of the "square", we need to take square root of both sides:

$\sqrt{(x+\frac{1}{2})^2}=\sqrt{\frac{4}{9}}\\x+\frac{1}{2}=\frac{\sqrt{4}}{\sqrt{9}}$

Then we use algebra to find the value(s) of x. Remember, when we take square root, we have to add up a "+-" (on the right side). Shown below:

$x+\frac{1}{2}=+-\frac{\sqrt{4}}{\sqrt{9}}\\x+\frac{1}{2}=+-\frac{2}{3}\\x=\frac{2}{3}-\frac{1}{2}=\frac{1}{6}\\x=-\frac{2}{3}-\frac{1}{2}=-\frac{7}{6}$

So these are 2 answers for x.

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3 years ago

What is this answer? -1/4-(-3/5)

Anestetic [448]

Answer:

-1/4-(-3/5)=0.35

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers