Question

(ii) 6x3 - 5x2 + x - 7 and 3x3 - 7x2 - x + 8.​

Answer 1

Answer:

x=1

x=-1

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Answer 2

Answer:

x= 17

x=-13

Step-by-step explanation:

6×3-5×2+x-7

= 18 -10 + x-7 =0

= -10 +x-7=0

=x-7 =10

= x= 10+7

= x= 17

3×3-7×2-x+8

=9-14-x+8=0

=-5-x+8=0

=-5-x=8

=-x=8+5

=-x=13

=x=-13