Question

Please tell me the answer ​

Answer 1

Answer:

see ans in the form image.

Answer 2

Solution

i)

=> a² + 25a - 54 = 0

Split Into Middle term

=> a² + 27a - 2a - 54 = 0

=> a( a + 27 ) - 2( a + 27 ) = 0

=> ( a - 2 )( a + 27 ) = 0

=> a - 2 =0 and a + 27 =0

=> a = 2 and a = -27

ii)

=> x² + 7x + 12 = 0

Split into Middle term

=> x² + 4x + 3x + 12 = 0

=> x( x + 4) + 3( x + 4 ) = 0

=> ( x + 3 )(x + 4 ) = 0

=> x + 3 = 0 and x + 4 = 0

=> x = -3 and x = -4