Advertisements
Advertisements
Question
Find and correct the errors in the statement: (2x)2 + 4(2x) + 7 = 2x2 + 8x + 7
Advertisements
Solution
L.H.S = (2x)2 + 4(2x) + 7 = 4x2 + 8x + 7 ≠ R.H.S
The correct statement is (2x)2 + 4(2x) + 7 = 4x2 + 8x + 7
RELATED QUESTIONS
Find and correct the errors in the statement: 2x + 3y = 5xy
Find and correct the errors in the following mathematical statement. Substituting x = −3 in x2 + 5x gives (−3)2 + 5 (−3) = −9 − 15 = −24
Find and correct the errors in the statement: (y − 3)2 = y2 − 9
Find and correct the errors in the statement: (2a + 3b) (a − b) = 2a2 − 3b2
Find and correct the errors in the statement: (a + 4) (a + 2) = a2 + 8
Find and correct the errors in the statement: `(3x^2 + 1)/(3x^2) = 1 + 1 = 2`
Find and correct the errors in the statement: `(3x)/(3x + 2) = 1/2`
Find and correct the errors in the statement: `(7x + 5)/5 = 7x`
Identify the errors and correct them
7y2 – y2 + 3y2 = 10y2
Identify the errors and correct them
m(4m – 3) = 4m2 – 3
