1.what is the sum of -2√5 + 8√5?
2.what is the different when√5 is subtracted from -3√20?
3.what is the product of √18 and -√2 ?
4.what is the product of √3 and √27?
5.which of the simplified form of 6+√3
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4-√3
6.what is the value of x in the equition √x+5-8=2?
7.the square root of trice a number is equal to the square root of eighteen more than the number.what is the number?​