(b) 7×2 – 19x – 6 find the factorisation of this.​

Question

(b) 7×2 – 19x – 6 find the factorisation of this.​

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Katherine 1 month 2021-08-15T07:17:36+00:00 2 Answers 0 views 0

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    0
    2021-08-15T07:18:48+00:00

    To factorize this equation, Let’s split the middle term,

    -19x can be written as (2x – 21x),

    Now re writting the equation,

    7x² – 21x + 2x – 6

    => Taking 7x common in first 2 terms, and 2 common in last two terms,

    => 7x(x-3) + 2(x-3)

    Now taking (x-3) common,

    => (x-3)[7x+2],

    This is the required answer,

    So therefore the answer is (x-3)[7x+2],

    If you need zeroes of the equation, Let the equation be equal to zero,

    Now either x-3 = 0, or 7x +2 = 0,

    => Either x = 3 , or x = -2/7,

    So zeroes of equation are 3, -2/7,

    Hope you understand, Have a great day !

    0
    2021-08-15T07:19:22+00:00

    Step-by-step explanation:

    7x {}^{2}  - 19x - 6

    7x {}^{2}  - (21 - 2)x- 6

    7x {}^{2}  - 21x + 2x - 6

    7x(x - 3) + 2(x - 3)

    (7x + 2)(x - 3)

    I hope it’s help you

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