Math, asked by shaffan305, 6 months ago


3. a) Factorise : 3x2 - 5x - 12.

Answers

Answered by SidharthSK1122
0

Answer:

x = +3  or x= -4/3

Step-by-step explanation:

let:-

3x^{2}-5x-12 = 0

=>3x^{2} -9x+4x-12 = 0      ----[splitting -5x into -9x+4x]

=>3x(x-3)4(x-3) = 0

=>(x-3)(3x+4) = 0

==> x = 3 or x= -4/3

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