Question

please answer this with step by step explanation I will definitely make you as a brain list, factorisation method
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Answer 1

Answer:

X=-1/2,-4

EXPLANATION:

2x²+7x+4 =0

First we must multiply the coefficient of x² with the constant number.

It gives us (2*4=8)

Now we must find the factors of 8

They are : 8*1 , 1*8 , 2*4, 4*2.

If we add both the number of the factors we must get the coefficient of x. e.i : 7

we must use the factor 1x8 or 8x1

Now I take the factor 1x8

Since the coefficient of x² is 2 we must divide 1 and 8 with 2 . We can cancel 2 and 8 and we will get 4 .

Now in the case of 1 which is one of the factors.

(x+4) (2x+1)

X= -4 , -1/2

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