Question

$(x - 4)(x + 9)$
multiply 1. question is (x+2) (x+5)

= x (x +5 ) 2 (x+5)
=x square 2 + 5x+2x+10
=x square 2 +7x + 10 \\

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Answer 1

Answer:x²+5x-36

Step-by-step explanation:

(x-4)×(x+9)=x×(x+9)-4×(x+9)

=x²+9x-4x-36

=x²+5x-36