17-11-2020
Mathematics

contestada

What is the positive solution for (x-4)(x+5) = 0

Respuesta :

Illsabel Illsabel

17-11-2020

Answer:x=4

Step-by-step explanation:

You can split this up into two equations

x-4=0

x+5=0

To solve each:

x-4=0

Add 4 to each side

x=4

------------

x+5=0

Subtract 5 from each side

x=-5

So your two solutions are -5 and 4 but you want the positive one so the answer is x=4

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