Step-by-step explanation:
[tex] - 5(2 + \sqrt{5} ) - \sqrt{7} (2 + \sqrt{5} )[/tex]
[tex] - 10 - 5 \sqrt{5} - 2 \sqrt{7} - \sqrt{35} [/tex]
hope it helps u mate
- 10 + 2√7 - 5√5 + √35
-(5 + √7)(2 + √5) =
= -5×2 + 2×√7 - 5×√5 + √7×√5
= - 10 + 2√7 - 5√5 + √35