A = (x:x € R and x satisfy. x2 + 8x + 12), B = (-2,-4,-6). Check whether A is asubset of B. Give reason
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Step-by-step explanation:
A = (x:x € R and x satisfy. x2 + 8x + 12)
=x²+8x+12
=x²+2x+6x+12
=(x+2)(x+6)
=> x=-2,-6
A=(-2,-6)
B = (-2,-4,-6)
A is a subset of B
the values of A all are in B so A is a subset of B
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