Question

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The quadratic equation x^2-4x-12=0 has w and z as solutions, where w>z. What is the value of 3w+2z?

Answer 1

factor
wat 2 numbers multily to get -12 and add to ge -4?
-6 and 2
(x-6)(x+2)=0
set to zero
x-6=0
x=6
x+2=0
x=-2

6>-2
w=6
-2=z

3w+2z
3(6)+2(-2)
18-4
14

te value is 14