Question

factorise 3x^2+x-14​

Answer 1

3(x + p)(x + q)

y'=x2+x−42.

y=3x2+x−14=

Explanation:

Converted trinomial

= (x + p')( + q')

p' and q' have opposite sign. Factor pairs of (-42) -->...(-2, 21)( -3, 14)(-6, 7). This sum is 7 - 6 = 1 = b. Then, p' = -6 and q' = 7.

p=−6 3=−2

Therefor,

and

q=7 3

Factored form:

y=3(x−2)(x+7 3)=(x−2)(3x+7)

Answer 2

Answer:

X = -4/3 & 1

Step-by-step explanation:

3x² + x - 4

3x² + 4x - 3x - 4

3x² - 3x + 4x - 4

3x(x-1) + 4(x-1)

(3x+4)(x-1)

X = -4/3 & 1