х2 – 25 =(x-5)(x+5)
144 – у2 =(12-5y)(12+y)
81 – 4с =(9-2c)(9+2c)
(х-у)2 – 81= (x-y-9)(x-y+9)
121 – 25у2 =(11-5y)(11+5y)
с2 –100=(c-10)(c+10)
49с2 – у2 =(7c-y)(7c+y)
1 – 4с2 =(1-2c)(1+2c)
(х+7)2 – 36 =(x+7-6)(x+7+6)
100 – 64у2 =(10-8y)(10+8y)
100 - 4х2 =(10-2x)(10+2x)
36р2 – 49у2 =(6p-7y)(6p+7y)
х6 – 36с2 =(x3-6c)(x3+6c)
(х-4)2 – (с-5)2 =(x-4-c+5)(x-4+c-5)
1 – 25с2 =(1-5c)(1+5c)
64а2 - х2 =(8a-x)(8a+x)
400р8 – 49у4 =(20p4-7y2)(20p4+7y2)
1 – 36с6 =(1-6c3)(1+6c3)
(х-1)2 – (с-5)2 =(x-1-c+5)(x-1+c-5)
а2 –4с2=(a-2c)(a+2c)
Объяснение:
x2 – 25 = ( x - 5 )( x + 5 )
144 – y2 = ( 12 - 5y )( 12 + y )
81 – 4c = ( 9 - 2c )( 9 + 2c )
( x - y )2 – 81 = ( x - y - 9)( x - y + 9 )
121 – 25y2 = ( 11 - 5y )( 11 + 5y )
с2 – 100 =( c -10 )( c + 10 )
49с2 – у2 = ( 7c - y )( 7c + y )
1 – 4с2 = ( 1 - 2c )( 1 + 2c )
(х+7)2 – 36 =( x + 7 - 6 )( x + 7 + 6 )
100 – 64у2 = ( 10 - 8y )( 10 + 8y )
100 - 4х2 =( 10 - 2x )( 10 + 2x )
36р2 – 49у2 = ( 6p - 7y )( 6p + 7y )
х6 – 36с2 =( x3 - 6c )( x3 + 6c )
(х-4)2 – (с-5)2 = ( x - 4 - c + 5 )( x - 4 + c - 5 )
1 – 25с2 = ( 1 - 5c )( 1 + 5c )
64а2 - х2 = ( 8a - x )( 8a + x )
400р8 – 49у4 = ( 20p4 - 7y2 )( 20p4 + 7y2 )
1 – 36с6 = ( 1 - 6c3 )( 1 + 6c3 )
(х-1)2 – (с-5)2 = ( x - 1 - c + 5 )( x - 1 + c - 5 )
а2 – 4с2 = ( a - 2c )( a + 2c )
b=+-√(c²-a²)