Question

Work out, giving your answer in standard form.

1,2 x10^ 40 + 1.2 x 10^41

Answer 1

Step-by-step explanation:

1.2x10^40 + 1.2x10^41

1.2x10^40 + 1.2x10^(40+1)

1.2x10^40 + (1.2x10^40 x 1.2x10^1)

1.2x10^40 ( 1 + 1.2x10)

1.2x10^40 (1 +12)

1.2x10^40 (13)

15.6x10^40

Answer 2

The standard form of 1.2 × $10^{40}$ + 1.2 × $10^{41}$ is 13.2 ×  $10^{40}$.

Given,

1.2 × $10^{40}$ + 1.2 × $10^{41}$

To Find,

The standard form.

Solution,

Before solving the question, let's understand the concept of Standard form.

The standard form is the basic form in which all the power of bases will remain the same.

Now, let's solve the question,

= 1.2 × $10^{40}$ + 1.2 × $10^{41}$

Now, we will equal the bases of the equation.

= 1.2 × $10^{40}$ + 12 × $10^{40}$

Now, we will add the numbers

On adding, we get,

= 13.2 × $10^{40}$ .

The standard form of 1.2 × $10^{40}$ + 1.2 × $10^{41}$ is 13.2 ×  $10^{40}$.

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