Question

Slove ( 7 √7 ) * (-4 √7 )
Slove ( 2√3 -5 √2 ) + (√3 + 2√2 )

Answer 1

Answer:

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Step-by-step explanation:

2. $7 \sqrt{7 } \times - 4 \sqrt{7} = - 28 \times \sqrt{7} \times \sqrt{7 } = - 28 \times 7 = - 196$
3. $2 \sqrt{3} - 5 \sqrt{2} + \sqrt{3} + 2 \sqrt{2} = 3 \sqrt{3} - 3 \sqrt{2} = 3( \sqrt{3} - \sqrt{2} )$