Question

2x

`2 {x}^(2) - 21x + 45`
​

Answer 1

2x²-21x+45

doing middle term factorization

2x²-(15+6)x+45

2x²-15x-6x+45

taking common

x(2x-15)-3(2x-15)

(2x-15)(x-3)

is your answer