Question

factorise the following ..5x^2-29x+42​

Answer 1

Step-by-step explanation:

$5x {}^{2} - 29x + 42 \\ = 5x {}^{2} - 15x - 14x + 42 \\ = 5x(x - 3) - 14(x - 3) \\ = (5x - 14)(x - 3)$

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Answer 2

Answer:

x=3,14/5

Step-by-step explanation:

5x^2-29x+42=0

5x^2-15x-14x+42=0

5x(x-3) -14(x-3)=0

(x-3) (5x-14)=0

x-3=0

x=3

5x-14=0

5x=14

x=14/5