1.

Add t−t2−14, 15t3+13+9t−8t2, 12t2−19−24t and 4t−9t2+19t3. If t=−1 find the value of the expression. [4 MARKS]

Answer»

Add
tt214, 15t3+13+9t8t2, 12t21924t and 4t9t2+19t3.

If t=1 find the value of the expression. [4 MARKS]



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