Answer:
25.3 × [tex]10^{4}[/tex] is the equivalent expression
Step-by-step explanation:
In this question, we are asked to select from the options the expression that is equivalent to the written expression.
2.1 × [tex]10^{5}[/tex] + 4.3 * [tex]10^{4}[/tex]
Now, we can factor out [tex]10^{4}[/tex].
This gives;
[tex]10^{4}[/tex]{[2.1 × 10] + 4.3}
[tex]10^{4}[/tex]( 21 + 4.3)
= [tex]10^{4}[/tex] × 25.3
