add √ 19 + √ 19
a. 2√38
b √40
c. √20
d. 2√ 19
The correct answer is d. 2√ 19.
To add the terms √19 + √19, we need to simplify the expression first. Here are the steps to get the answer:
Step 1: Combine the two terms.
√19 + √19 = 2√19
Step 2: Simplify the expression if possible.
2√19 is already in its simplest form.
Therefore, the correct answer is option d) 2√19.
To add √19 + √19, we can simplify it as follows:
√19 + √19 = (√19) (1) + (√19) (1) = √19 + √19 = 2√19
Therefore, the answer is (d) 2√19.