Question

1)a+2√a= 2) √6-√18= 3) x^2-15 4) 4-4√x

Answer 1

Ответ:

Объяснение:

1)a+2√a=√a(√a+2)

2) √6-√18=√3*√2-√9*√2= √2(√3-√9)= √2(√3-3)

3) x²-15=(x-√15)(x+√15)

4) 4-4√x4(1-√x)

Answer 2

1. To simplify the expression a+2√a, we can factor out √a:

a + 2√a = √a(√a + 2)

So, the simplified expression is √a(√a + 2).

2. To simplify the expression √6 - √18, we need to find a common factor between the two square roots. Both 6 and 18 have a factor of 6, so we can simplify as follows:

√6 - √18 = √6 - √(6 x 3) = √6 - √6√3 = √6(1 - √3)

So, the simplified expression is √6(1 - √3).

3. The expression x^2 - 15 cannot be simplified any further, as it is already in its simplest form.

4. To simplify the expression 4 - 4√x, we can factor out 4:

4 - 4√x = 4(1 - √x)

So, the simplified expression is 4(1 - √x).