Question

what are the solutions of the equation (2x +5)(x-4) = 0

Answer 1

ab=0 implies that a=0, or b=0, or both are zero

Answer 2

so... when does: 2x+5 = 0

and when does: x-4 = 0

Answer 3

the answer is x= 5/2 or x=4 but im not sure how i got that answer

Answer 4

zoeydenmark, one of those answers you got is incorrect

Answer 5

no its right my teacher gave me the answer but im not sure how to get it

Answer 6

2x+5 = 0

2x = -5

x = -5/2 <--- one solution

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x-4 = 0

x = 4 <---- the other solution

Answer 7

So there must be a typo

Answer 8

yes i meant to put the negative

Answer 9

oh ok

Answer 10

sorry