Answer:
9
Step-by-step explanation:
2a-10-15=3
2a=18
a=9
hope you get the explanation
3 and -3 are said to be the square roots of 9. A square root is written with a radical symbol √ and the number or expression inside the radical symbol, below denoted a, is called the radicand. ... Negative numbers don't have real square roots since a square is either positive or 0.
The sum of two numbers a and b decreased by their product is (a+b)-ab
Step-by-step explanation:
Given the two numbers as a and b
Sum of these two numbers is a+b
The product of the two numbers is a*b, ab
The sum of the two numbers decreased by their product will be;
(a+b)-ab
Learn More
- https://brainly.in/question/6082654
- https://brainly.in/question/6940394
Keywords : sum of two numbers, product
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X = 2 + √42,2- √42
decimal form: 8.480741, -4.480741
sorry if my answer isn't right
Answer:
B
Step-by-step explanation: