Question

2 x² + 7x+5 quadratic formal.​

Answer 1

Answer:

x=-1,-2.5

Step-by-step explanation:

2 x² + 7x+5

x=-b±√b²-4ac/2a

=-7±√7²-4×2×5/2×2. {a=2,b=7,c=5}

=-7±√49-40/4

=-7±√9/4

=-7±3/4

=-7+3/4, -7-3/4

=-4/4, -10/4

=-1, -2.5

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