Question

multiple the following mentally (x+4) (x+5)​

Answer 1

Answer:

(x+4) (x+5)

x(x+5)4(x+5)

${x }^{2} + 5x + 4x + 20 \\ {x}^{2} + 9x + 20$

hope it helps u

Answer 2

Answer:

x^2+9x+20

Step-by-step explanation:

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