Question

Solve by formula :- 2xsquare-x-15​

Answer 1

Answer:

2x2 + x = 15

2x2 + x - 15 = 0

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

If the product of the two expressions is zero, then one or both of the factors must be zero. Find those values of x that make each factor equal to zero:

2x -5 = 0

2x = 5

x = 5/2

x + 3 = 0

x = -3

x = -3, and x = 5/2

Step-by-step explanation:

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