3 years ago

4x +5 (3x2-x) - (1+ x + 6x2) i do i solve this

Mathematics

1 answer:

gavmur [86]3 years ago

7 0

Answer: 9x^2-2x-1

Step-by-step explanation: hope this helps!

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3 years ago

What is 3 divided by blank equal 36

weqwewe [10]

3÷?=36
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3 years ago

HELP PLEASE!!! Thanks!

Irina18 [472]

Answer:

2) $\frac{\sqrt{77}}{11}$

3) 5√2

Step-by-step explanation:

Simplest radical form of an expression is the expression in radical so that there are no more square roots, cube roots, 4th roots, etc left to find, after rationalising the denominator ( if needed ).

2. Here the given expressions,

$\frac{\sqrt{7}}{\sqrt{11}}$

For rationalising the denominator multiply both numerator and denominator by √11,

$\frac{\sqrt{77}}{11}$

3. given expression,

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$=\sqrt{25\times 2}$

$=\sqrt{25}\times \sqrt{2}$ $(\because \sqrt{ab}=\sqrt{a}\sqrt{b})$

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3 years ago