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Q: Solve 5x2 plus 14x - 3?

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(5x - 1)(x + 3)5x2 + 14x - 3= 5x2 + 15x - x - 3= 5x(x + 3) - 1(x + 3)= (5x - 1)(x + 3)

(5x - 1)(x + 3)

5x2+14x-3 -15. 15*-15x2-x+15x-3[5xx x] [3*5x 3]x(5x-1)+3(5x-3)Answer: (5x-1)(x+3)

5x2 + 14x - 3 let 14x = 15x - x=5x 2 + 15x - x - 3 factor out 5x and -1 = 5x(x + 3) - 1(x + 3) factor (x + 3) = (x + 3)(5x - 1)

5x2 + 15x = 0 5x(x + 3) = 0 therefore, x = 0 or x + 3 = 0 that is, x = 0 or x = -3

8x^2 + 14x + 3 factors to (4x + 1)(2x + 3)

5x2 = 3 then x2 = 3/5 so that x = sqrt(3/5) = Â± 0.7746

X= (3/5 , -2)

3

It is: 2xsquared+14x-9

5x2 + 3x - 1 does not have rational factors.

5x2-18x+9 = (5x-3)(x-3)

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