Question

find the sum of the zeros of the quadratic polynomial 2 x square - 7 x minus 15​

Answer 1

Answer:

2.5 or 5

Step-by-step explanation:

2x^2-7x -15 = 0

2x^2 -10x +3x -15 = 0

2x(x-5)+3(x-5) = 0

(2x+3)(x-5) = 0

So 2x -5 or x-5 = 0

x = 2.5 or 5

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Answer 2

Answer:

refer to the above attachment for solution