3. 9 (3x + 1) - 3(2x + 3) - Simplify the expression

Mathematics

2 answers:

Tanya [424]2 years ago

8 0

Answer:

The answer for this question would be 21x (when simplified).

timurjin [86]2 years ago

3 0

Answer:

9 (3x + 1) - 3(2x + 3)

we have to simplify the given expression

↝ 9(3x+1) - 3(2x+3)

↝ (27x+9) - (6x+9)

↝ 27x + 9 - 6x - 9

↝ 27x - 6x + 9 - 9

↝ 21x

So, the required answer is 21x .

You might be interested in

Simplify the expression \[\frac{6}{\sqrt{36} + \sqrt{27}} + \frac{6}{\sqrt{27} + \sqrt{18}} + \frac{6}{\sqrt{18} + \sqrt{9}}.\]

Viktor [21]

Answer:

= 18 ( 3 + 2(\sqrt{3} + \sqrt{2} ))

Step-by-step explanation:

$6(\sqrt{36} +\sqrt{27}) + 6(\sqrt{27} +\sqrt{18}) + 6(\sqrt{18} + \sqrt{9} )\\= 6( {6} +\sqrt{9*3}) + 6( \sqrt{9*3} +\sqrt{9*2}) + 6(\sqrt{9*2} + 3 )\\= 6( {6} +3\sqrt{3}) + 6(3\sqrt{3} +3\sqrt{2}) + 6(3\sqrt{2} + 3 )\\=36 + 18\sqrt{3} + 18\sqrt{3} + 18\sqrt{2}+ 18\sqrt{2} + 18\\= 36+18 +18( \sqrt{3}+ \sqrt{3} +\sqrt{2} + \sqrt{2})\\= 54 + 18 (2\sqrt{3} +2\sqrt{2})\\=54 + 36\sqrt{3} + 36\sqrt{2}\\= 18 ( 3 + 2(\sqrt{3} + \sqrt{2} ))$