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Mice21 [21]
3 years ago
15

Subtract 4x^3-6x^2+8x-9 from 7x^3-16+18

Mathematics
1 answer:
Rom4ik [11]3 years ago
3 0
To evaluate the expression we proceed as follows;
(7x³-16x+8)-(4x³-6x²+8x-9)
opening the parenthesis we have:
7x³+0x²-16x+8-4x³+6x²-8x+9

putting like terms together we get:
(7x³-4x³)+(-16x-8x)+(8+9)+(0x²+6x²)
=3x³+6x²-24x+17
the answer is
=3x³+6x²-24x+17
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