Advertisements
Advertisements
प्रश्न
Find and correct the errors in the statement: (a − 4) (a − 2) = a2 − 8
Advertisements
उत्तर
L.H.S. = (a − 4) (a − 2) = (a)2 + [(− 4) + (− 2)] (a) + (− 4) (− 2)
= a2 − 6a + 8 ≠ R.H.S.
The correct statement is (a − 4) (a − 2) = a2 − 6a + 8
संबंधित प्रश्न
Find and correct the errors in the statement: 4(x − 5) = 4x − 5
Find and correct the errors in the statement: 5y + 2y + y − 7y = 0
Find and correct the errors in the following mathematical statement. Substituting x = −3 in
x2 + 5x + 4 gives (−3)2 + 5 (−3) + 4 = 9 + 2 + 4 = 15
Find and correct the errors in the following mathematical statement. Substituting x = −3 in
x2 − 5x + 4 gives (−3)2 − 5 (−3) + 4 = 9 − 15 + 4 = −2
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 : `3/(4x + 3) = 1/(4x)`
Find and correct the errors in the statement: `(7x + 5)/5 = 7x`
Identify the errors and correct them
m(4m – 3) = 4m2 – 3
Identify the errors and correct them
(4n)2 – 2n + 3 = 4n2 – 2n + 3
Identify the errors and correct them
(x – 2)(x + 3) = x2 – 6
