Question

factorize 4x2+3x+5=0

Answer 1

The first term is, 4x2 its coefficient is 4 .

The middle term is, -3x its coefficient is -3 .

The last term, "the constant", is -5

Step-1 : Multiply the coefficient of the first term by the constant 4 • -5 = -20

Step-2 : Find two factors of -20 whose sum equals the coefficient of the middle term, which is -3 .

-20 + 1 = -19

-10 + 2 = -8

-5 + 4 = -1

-4 + 5 = 1

-2 + 10 = 8

-1 + 20 = 19

Observation : No two such factors can be found !!

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Answer 2

Step-by-step explanation:

so,13+3x=0

3x=-13

x=-13/3

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