Question

Can anyone solve this question for me I don’t understand this 26th question.

Answer 1

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Answer 2

Answer:

a= -16  ,  b= -6

Step-by-step explanation:

first take the rationalising factor as 3+ root 7 (we assume this on seeing the denominator and take the opposite sign)

then rationaise using the identities as you are  going to multiply {3+ root 7} to both numerator and denominator

remember root 7 square becomes 7

(√7)² = 7

then finally you will get the result as (16+6√7) / -1

so,

a= 16 / -1 = -16

b√7 = (6√7) / -1

b= -6

hope it helps... thanks ... i really hope my answer pleased you... :)

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