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olga_2 [115]
3 years ago
7

Please help my solve this

Mathematics
1 answer:
Verdich [7]3 years ago
4 0
I can’t help and also it would be too late so sorry also I’m doing this to ask a question sorry again
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What is:<br> <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B4x%5E%7B2%7D%20-20x%2B25%20" id="TexFormula1" title=" \sqrt{4x^{2} -
Firdavs [7]

We are given :

\sqrt{4x^{2}-20x+25}

Step 1: factor the part inside square root

The function given inside square root is of quadratic form.

So let us try to factorise it using AC method.

Here A*C = 4*25 = 100

so we have to find factors of 100 that add up to give -20.

the two factors are -10 and -10.

Rewriting the function :

4x^{2} -20x+25

=4x^{2} -10x-10x+25

=2x(2x-5) - 5(2x-5)

=(2x-5)^{2}

Step 2:

Now we take square root of the factorised form

\sqrt{(2x-5)^2}

= 2x-5

Answer : (2x-5)

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3 years ago
Solve x: 3x-7 = 5x+13 <br> Solve x: 7-3x = 5x+13
Svetach [21]
First you need to combine like terms
7-3x= 5x+13
step 1 add 3x
7=8x+13
step 2 subteact 13
-6=8x
step 3 divide both sides by two
x=-3/4
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3 years ago
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How do you solve for what is a? Please answer quickly?<br><br> 4(a-2)=3(a+4)
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4(a-2)=3(a+4)
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8 0
3 years ago
joe boght 15 tolets. 1 was pure gold 2 were pure silver and the rest were wooden. how many wooden toilets were there?
borishaifa [10]
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It is easy all you have to do is 15-3 because 1+2=3
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Find the equation of the exponential function represented by the table below:
amm1812

Answer:

f(x) = 2^(2x+1)

Step-by-step explanation:

2 = 2¹

8 = 2³

32 = 2⁵

128 = 2⁷

1,3,5 and 7 are odd numbers.

Individual numbers in mathematics are represented as 2x + 1.

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3 years ago
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