Answer:
Step-by-step explanation:
20
Opposite sides being parallel proves that hte figure is a parallelogram. The sides only appear to be equal so his conclusion is not valid. He would need to show that 2 adjacent sides of the parallelogram are equal ( using the distance formula) to prove that it is a rhombus.
C 0 and 2 both make the equation true
Answer:
f(x) = x² + 2x - 3
(x+3)(x-1)
Step-by-step explanation:
Zeroes are -3 and 1
Let α = -3 and β = 1
f(x) = x² - (α+β)x + (αβ)
= x² - (-3+1)x + (-3 × 1)
= x² - (-2)x + (-3)
= x² + 2x - 3
x²+2x-3
x² - x + 3x - 3
x(x-1) + 3(x-1)
(x+3)(x-1)
