Question

factorise 15x^4-10x^3-25x^2​

Answer 1

Answer:

See answer in above picture

Answer 2

Step-by-step explanation:

15x⁴-10x³-25x²

5x²(3x²-2x-5)

5x²(3x²-3x+5x-5)

5x²{3x(x-1)+5(x-1)}

5x²(3x+5)(x-1)

3x+5=0

3x=-5

x=-5/3

and

x-1=0

x=1

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