2.
6. Subtract 7×2 + 2x – 1 from x3 – x2 + 2x -1.
(a) 7x² + x3 – x
(b) x + 7x² + 2x-1
(c) x² – 8x²
(d) None of these
2.
2 thoughts on “2.<br />6. Subtract 7×2 + 2x – 1 from x3 – x2 + 2x -1.<br />(a) 7x² + x3 – x<br />(b) x + 7x² + 2x-1<br />(c) x² – 8x²<br />(d) No”
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Answer:
6) 7x²+2x-1
x³-x²+2x-1
(x³-x²+2x-1)-(7x²+2x-1)
x³-8x²
option c is the correct answer
Answer:
(7×2+2x-1)-(x3-x2+2x-1)
7×2+2x-1-x3+x2-2x+1
-x3+8×2…this is final answer…so
option d..is right