Question

plzz help me.............................​

Answer 1

Answer:

Answer of question-3= √84.....

please mark my answer as brainliest answer

Answer 2

ans1) (5000*10*2)/100

P = 1000

Amount = Principle + Intrest

= 5000+1000

=6000

ans2)√5-2√6+1/√5-2√6

we get,

=√(5-2√6)

ans 3)

√147-√75-√12

7√3-5√3+2√3

=14√3

ans4)

a+3b=5

=a=5-3b..(I)

7a-8b=6

7(5-3b)-8b =6

35-21b-8b=6

35-29b=6

-29b=6-35

-29b=-29

b=1

entering value of b in eq (I) we get...

a+ 3b =5;

a+3=5;

a=5-3;

a=2

ans5)

x(12x+7)-10;

12x²-7x-10=0;

12x²-15x+8x-10=0;

3x(4x-5)-2(4x-5)=0;

(4x-5)(3x-2)=0;

x=5/4 or x=2/3;

hope it helps....!!!!all the best...!!!!!