Question

A square + 25 a minus 54

Answer 1

Halo there,

=> a² + 25a - 54

=> a² + 27a - 2a - 54

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

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

Hope this helps....:)

Answer 2

We have,

=> a² + 25a - 54

Using factorisation method :-

=> a² + (27 - 2) a - 54

=> a² + 27a - 2a - 54

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

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

For finding zeroes :-

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

=> a = -27 and a = 2

Therefore, a = -27 and 2

Hope this helps.....