Question

factorisation...
2x^2-19x+45​

Answer 1

Step-by-step explanation:

2x²-19x+45=0

2x²-10x-9x+45=0

2x(x-5)-9(x-5)=0

(2x-9)(x-5)=0

2x-9=0,x-5=0

2x=9,X=5

x=9/2,X=5

Answer 2

Answer:

=2x²-19x+45

= 2x²-(10+9)x+45

=2x²-10x-9x+45

=2x(x-5)-9(x-5)

=(x-5)(2x-9)