Question

B. Find the value(s) of x in the following radical equations:
1. √X-3 = 5
4. 13x - 1 - √x+ 5 = 0
2. √x+8=3
5. x = √x - 4+4
3. 3^√2x + 3 + 5 = 0
6. x + 4 = x + 10

please paki sagot po need na po kasi yung matino sana​

Answer 1

Answer:

1. 28

2. 1

5. 4 or 5

3, 4, 6 are not clear

Step-by-step explanation:

1. sqrt(x - 3) = 5

==> x - 3 = 5²

==> x - 3 = 25

==> x = 25 + 3 = 28

2. sqrt(x + 8) = 3

==> x + 8 = 3²

==> x + 8 = 9

==> x = 9 - 8 = 1

5. x = sqrt(x - 4) + 4

==> x - 4 = sqrt(x - 4)

==> (x - 4)² = x - 4

==> x² - 8x + 16 = x - 4

==> x² -8x + 16 - x + 4 = 0

==> x² - 9x + 20 = 0

==> x² - 4x - 5x + 20 = 0

==> x(x - 4) -5(x - 4) = 0

==> (x - 4)(x - 5) = 0

==> x - 4 = 0 or x - 5 = 0

==> x = 4 or x = 5

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