Question

Factories x^2 - 4x - 45​

Answer 1

Answer:

(x + 5)(x -9)

Step-by-step explanation:

Dude its very easy...

=) x^2 - 4x - 45

as 9x5 = 45 and the mid term is negative,

=) x^2 -(9-5)x - 45

=) x^2 - 9x + 5x - 45

=) x(x - 9) + 5(x - 9)

=) (x + 5)(x - 9)

Hope it helps you buddy...

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