Given:
Using the identity:
x2−y2=(x+y)(x−y)=16×3
=48
Last updated 27-07-2026 by NA
2x + 4 /x =9
Multiply both sides by x:
x ( 2x + 4/x) = 9x
Now multiply each term:
2x^2 + 4x/x =9x
Since x/x =1
2x^2+4=9x
|3| = 3, |−3| = 3, and 2² = 4.
|−3²| = |−9| = 9 → 3 − 3 − 4 − 9 = −13.
Last verified on 02-09-2026
When we divide numbers with same base we subtract the powers.
First 2^40 / 2^19 gives 2^(40-19) = 2^21.
Then 2^21 / 2^13 gives 2^(21-13) = 2^8.
Last verified on 04-09-2026
Solve: (2x + 3) / (x - 1) = 3
2x + 3 = 3(x - 1)
2x + 3 = 3x - 3
3 + 3 = 3x - 2x
x = 6
Last verified on 04-05-2026
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