Question

-2x² + 4x +30=0




please do it fast and also I mark her/him brilliance​

Answer 1

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-2x² + 4x +30 = 0

- 2x² + 10x - 6x + 30 = 0

2x (- x + 5) + 6 (- x + 5) = 0

(2x + 6) = 0 or (- x + 5) = 0

2x = - 6 or - x = - 5

x =$-\dfrac{6}{2}$ or x = 5

x = - 3 or x = 5

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Answer 2

Answer:

Step-by-step explanation:

sum=4

product=(-2×30)=-60

factors=(10,-6)

-2x²+4x+30=0

(-2x²+10x)+(-6x+30)=0

2x(-x+5)+6(-x+5)=0

(2x+6)(-x+5)=0

2x+6=0

2x=-6

2     2

x=-3    

-x+5=0

-x=-5

-1   -1

x=5  

pliz mark as the brainiest