4 years ago

How to solve this task 4×-2+1=3×+5

Mathematics

1 answer:

just olya [345]4 years ago

8 0

4x-2+1=3x+5

Subtract 3x from both sides

x-2+1=5

Same as

x-1=5

Add 1 to both sides

x=6

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Use radical notation to rewrite each expression and simplify<br> 9 3/2

scoundrel [369]

Answer:

$9^{\frac{3}{2}}=\sqrt{9^3}=27$

Step-by-step explanation:

The fractional exponent m/n is often translated to radical form as ...

$x^{\frac{m}{n}}=\sqrt[n]{x^m}$

In this case, I find it easier to evaluate as ...

$x^{\frac{m}{n}}=(\sqrt[n]{x})^m=\boxed{(\sqrt{9})^3=3^3=27}$

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Read 2 more answers

What is 3k(-5k+21)+2(2.5k+90) <-- Confused please help

MAVERICK [17]

Use distributive prpoerty
a(b+c)=ab+ac

distribute each
3k(-5k+21)=-15k^2+63k

2(2.5k+90)=5k+180

so nowe we have
-15k^2+63k+5k+180
add like terms
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that is the answer

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