Question

please give the answer with methods of this question​

Answer 1

Answer:

The answers are both A and B

Step-by-step explanation:

15x² - 2x - 8 = 0

15x² - 12x + 10x - 8 = 0

3x (5x - 4) + 2 (5x - 4) = 0

(3x + 2)(5x - 4) = 0

X = -2/3

or

X = 4/5

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Answer 2

Option A and E are correct.

-15 x ^2 + 2x + 8

Using product and sum method, factorise the equation.

-15x^2 + 12x - 10x + 8
-3x(5x+4) - 2(5x+4)
(-3x-2) (5x+4)

-3x-2 = 0
-2=3x
-2/3 = x

5x+4 = 0
x= -4/5

Hope this helps :)