Question

(5+✓7)(2+✓7) simplify​

Answer 1

Answer:

HI FRIEND HERE IS YOUR ANSWER ,

(5+\sqrt{7})(2+\sqrt{5})

Solution:

(5+\sqrt{7})(2+\sqrt{5})

5(2+\sqrt{5})+\sqrt{7}(2+\sqrt{5})

10+5\sqrt{5}+2\sqrt{7}+\sqrt{35}

Since value of \sqrt{5} = 2.23

Value of \sqrt{7} = 2.64

Value of \sqrt{35} = 5.91

Substitute the values

10+5(2.23)+2(2.64)+5.91

32.34

Hence the simplified value of given expression is 32.34

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Answer 2

Answer:

17 + 7✓7

Step-by-step explanation:

Question:

Simplify : (5+✓7)(2+✓7)

Solution:

$(5 + \sqrt{7} )(2 + \sqrt{7} ) \\ = 5 \times 2 + \sqrt{7} \times 2 + 5 \times \sqrt{7} + \sqrt{7} \times \sqrt{7} \\ = 10 + 2 \sqrt{7} + 5 \sqrt{7} + 7 \\ = 17 + 7 \sqrt{7}$

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