Math, asked by sakshamdutta999, 5 months ago

solve using suitable identity (i)(6x-7)(6x-7) (ii)(4x+5)(4x-5)​

Answers

Answered by nayanamadhu20
1

Step-by-step explanation:

(6x-7)(6x-7)= (6x-7)²=(6x)²-2×7×6x+(7)²=36x²-84x+49

(4x+5)(4x-5)=(4x)²-(5)²=16x²-25

Answered by parishmitag53
2

Step-by-step explanation:

  1. 6x^2 -2.6x.7+7^2 (Formula = (a-b)^2 = a^2 -2ab+b^2)
  2. 36x^2 -84 +49 is the required ans for the first que.(i)
  3. 4x^2 -5^2 ( Formula = a^2 -b^2=( a+b) (a-b)
  4. 16x^2 -25 is the ans for que (ii)

If u like my ans thn flw me n mark as branliast ans...

Similar questions