Math, asked by 6759njib, 9 months ago

Show that (x + 4), (x – 3) and (x - 7) are factors of x3 - 6x2 - 19x + 84.​

Answers

Answered by s11948
12

Answer:

x+4=0

x=-4

p(x)=(-4)^3-6(-4)^2-19(-4)+84=0

= -64-96+76+84=0

= 0=0

×-3=0

×=3

p(x)=(3)^3-6(3)^2-19(3)+84=0

=27-54-57+84=0

=0=0

×-7=0

×=7

p(x)=(7)^3-6(7)^2-19(7)+84=0

=343-294-133+84=0

=0=0

therefore(x+4) (x-3)(x-7) are factors of p(x)

Answered by gopalrathod0011
0

Step-by-step explanation:

शोधन एक्स एक्स प्लस 4 एक्स माइनस 3 एक्स माइनस 7 r7s ऑफ एक्स क्यूब माइनस सिक्स एक्स स्क्वायर माइनस 9 प्लस 84

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