Question

anyone please answer this fast

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Answer 1

(5x²-15+2√6x²-6√6)+(5x²-15-2√6x²+6√6)

= 10x²-30= 10

= 10x² = 40

= x² = 40/10

= x² = 4

=x =+√4

=x = + 2.......

Answer 2

HERE IS YOUR ANSWER ⤵
$(5 + 2 \sqrt{6} ){x }^{2} - 3 + (5 - {2 \sqrt{6} }) {x}^{2} - 3 = 10$

Now by taking x²-3 as common....

x²-3 (5+2√6)+(5-2√6)=10

x²-3 {5+ 2√6+5- 2√6} =10

x²-3 {10} = 10

10x² -30 = 10

10x² = 10 +30
x² = 40/10
x = √4
x =±2

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