Question

factorise:
4y²-y-14=0​

Answer 1

Answer:

since we know that

D=b^2-4ac

D=(-1)^2-4*4*(-14)

D=1+224

D=225

√D= 15

alpha = -b+✓D/2a

= -1+15/2*4

=14/8

=7/4 = Alpha

Beta = -b-✓D/2a

= -1-15/2*8

= -16/16

= -1 = Beta

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