18
Step-by-step explanation:
just take off the minus sign
2 x^2 -3x+p
sum of roots = 3/2
let other root be x
3+ x = 3/2
x= 3/2 - 3 = -3/2
product of roots = p/2
3× -3/2 = p/2
-9 = p
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squares, rhombus, rectangles