Question

2-√5, 2+√5 how it
solved​

Answer 1

Hey,

Ur answer is here,

2-1 {7-[5-2 (5)-5]}

=2-1{7-[5-10-5]}

=2-1{7-[-10]

=2-1{7+10}

=2-1{17}

=2-17

=-15

Hope it helps you ☺️

Answer 2

Answer:

-1

Step-by-step explanation:

2-√5×2+√5 = 4+2√5-2√5-5

=4-5 = -1 (cancelling 2√5 because of different signs)