Question

simplify the following.
Can you say this argent I will mark as brainlist answer.​

Answer 1

Answer:

(v) (7^2-4√3^2)

(49-48)

1

(vi) (√3^2+(2+5)√3+2×5)

(3+7×√3+10)

( 13+7√3)

(vii) (√3^2+(√2+√5)√3+√2×√5)

( 3 + √6+√15+√10)

Answer 2

(v) 1

(vi) 7√3+ 13

(vii) 3+√6+√15+√10

1) (7+4√3) (7-4√3)

= (7^2- 4√3^2) --(a+b) (a-b)= a^2-b^2

= 49- (16×3) = 49-48

= 1

2) (2+√3) (5+√3) = (√3+2) (√3+5) --(reverse)

= (√3)^2+ (2+5)√3+ (2×5) --(x+a) (x+b)= x^2+(a+b)x +ab

= 3+7×√3+ 10

=7√3+ 13

3) (√2+√3) (√3+√5) = (√3+√2) (√3+√5) --(reverse)

= (√3)^2+ (√2+√5)√3+ (√2×√5) --(x+a) (x+b)= x^2+(a+b)x +ab

= 3+√6+√15+√10

Hope my efforts will help you