Question

x² +5x - 300=0 find X through factorisation method​

Answer 1

Answer:

x²+5x-300=0

x²+20x-15x-300=0

x(x+20)-15(x+20)=0

(x+20)(x-15)=0

=> x+20=0 and x-15=0

=> x=-20 and x=15

hope it helps u.....^_^

Answer 2

Answer:

=x^2+ (25-20)x-300= 0

=x^2+25x-20x-300= 0

=x(x+25)-12(x+25) = 0

=(x+25) (x-12)= 0

Therefore, x = 12

Step-by-step explanation:

The value of x cannot be negative. Therefore, we take the positive value to be the value of x.

x+25=0

x=-25(not possible)

x-12=0

x= 12.