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Zina [86]
3 years ago
10

What is 3x+5x+2 factorised for yr 10 gcse

Mathematics
1 answer:
marusya05 [52]3 years ago
5 0

Factorising quadratic expressions

Multiply these brackets to remind yourself how to factorise.

<span><span>( x + 2 ) ( x + 5 ) = x2 + 7x + 10</span><span>( x + 2 ) ( x + 3 ) = x2 + 5x + 6</span><span>( x - 3 ) ( x - 5 ) = x 2 - 8x + 15</span><span>( x + 6 ) ( x - 5 ) = x2 + x - 30</span><span>( x - 6 ) ( x + 5 ) = x2 - x - 30</span></span>
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2 1/4 x 3 1/5 in its simplest form
Dmitry_Shevchenko [17]
<h3>Solution:</h3>

2 \frac{1}{4}  \times 3 \frac{1}{5}  \\  =  \frac{9}{4} \times  \frac{16}{5}   \\  =  \frac{9 \times 4}{5}  \\  =  \frac{36}{5}  \\  = 7 \frac{1}{5}

<h3>Answer:</h3>

7 \frac{1}{5}

<h3>Hope it helps..</h3><h3>ray4918 here to help..</h3>

7 0
3 years ago
Read 2 more answers
11 less than 7 times a number is 5 more than 6 times the number. find the number.
kolezko [41]

Let's translate the words into expressions:

11 less than 7 times a number is 7x-11

5 more than 6 times the number is 6x+5

So we have the equation

7x-11 = 6x+5

Subtract 6x from both sides:

x - 11 = 5

Add 11 to both sides:

x=16

7 0
3 years ago
Read 2 more answers
What is pi^pi^pi^pi^pi^pi^pi^pi = many pi's = 10^(10^(10^(10^(10^(10^17.82364533941695)))))
yuradex [85]

Answer:

Pi is 3.14 for short but, its 3.14159265359

Step-by-step explanation:

The number π is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159.

4 0
3 years ago
Read 2 more answers
What is the square root of -1
patriot [66]

Answer:

i

Step-by-step explanation:

This is the answer you get when you square and you get a negative number.

6 0
3 years ago
f a university wants to maintain a 14:1 ratio between students and teachers, how many teachers would be needed to accommodate 89
olga2289 [7]
14:1
896:?

14x = 896
x represents number of teachers

Divide 14 off of both sides.

896/14 = 64

Final answer is 64.
3 0
3 years ago
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