Advertisements
Advertisements
प्रश्न
Find and correct the errors in the following mathematical statement. Substituting x = −3 in x2 + 5x gives (−3)2 + 5 (−3) = −9 − 15 = −24
उत्तर
For x = −3,
x2 + 5x = (−3)2 + 5(−3) = 9 − 15 = −6
APPEARS IN
संबंधित प्रश्न
Find and correct the errors in the statement: 5y + 2y + y − 7y = 0
Find and correct the errors in the statement: (2x)2 + 4(2x) + 7 = 2x2 + 8x + 7
Find and correct the errors in the statement: (3x + 2)2 = 3x2 + 6x + 4
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 statement: (y − 3)2 = y2 − 9
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
7y2 – y2 + 3y2 = 10y2
Identify the errors and correct them
6xy + 3xy = 9x2y2
Identify the errors and correct them
m(4m – 3) = 4m2 – 3
