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3 years ago

Write an equation. Let x be the unknown number.

Mathematics

2 answers:

Assoli18 [71]3 years ago

4 0

3-5x = -5
X =8/5
I hope this helps

cluponka [151]3 years ago

4 0

Answer:

3 - 5x = - 5

Step-by-step explanation:

Subtracting five times a number from 3 is negative 5 in an equation is :

3 - 5x = - 5

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3 years ago

How can you prove these triangles are congruent

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3 years ago

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3 years ago

Read 2 more answers

Factorize x^2/16+xy+4y^2

lisov135 [29]

Answer:

$\frac{x^2}{16} +xy+4y^2$ can be factored out as: $(\frac{x}{4} +2\,y)^2$

Step-by-step explanation:

Recall the formula for the perfect square of a binomial :

$(a+b)^2=a^2+2ab+b^2$

Now, let's try to identify the values of $a$ and $b$ in the given trinomial.

Notice that the first term and the last term are perfect squares:

$\frac{x^2}{16} = (\frac{x}{4} )^2\\4y^2=(2y)^2$

so, we can investigate what the middle term would be considering our $a=\frac{x}{4}$ , and $b=2y$ :

$2\,a\,b=2\,(\frac{x}{4}) \,(2\,y)=x\,y$

Therefore, the calculated middle term agrees with the given middle term, so we can conclude that this trinomial is the perfect square of the binomial:

$(\frac{x}{4} +2\,y)^2$

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3 years ago

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