(2.4 x 10-9) (4.0 x 1023) = _____

$$\mathbf{9.6*10^{14}}$$

\mathbf{9.6*10^{14}}

I haven't seen that bold face command before (I am assuming that is what it stands for)

I'll record that in our Latex thread. 

Thanks Aziz.

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This is how you can do your question without a calculator.

$$(2.4 \times 10^{-9}) (4.0 \times 10^{23}) \\\\ =2.4\times4 \times 10^{-9}\times 10^{23}\\\\ =2.4\times4 \times 10^{-9}\times 10^{23}\\\\ =9.2\times 10^{-9+23}\\\\ =9.2\times 10^{14}\\\\$$

(2.4 x 10^-9) (4.0 x 10^23) 

= (2.4*10^-9)*(4.0* 10^23)

= 960000000000000

=  $$\mathbf{9.6*10^{14}}.$$