Question

Qnol) What must be subtracted from 3a2 +4b2-6ab to get 8b2-4a2 +2ab.
Or
From the sum of 5x2+x+2 and - 2x + 3x2 +4, subtract x- x2-1
Qno2)solve and check your answer.
X+(x+6)=(x+8)+21.
Or
A number is multiplied by 3, and 7 is added to it to get the result 25. Find the number.
(x2 is x square)​

Answer 1

Answer:

A number is multiplied by 3, and 7 is added to it to get the result 25. Find the number.

(x2 is x square)

Ans:-. 6