Explanation:
The advantages of writing the polynomial expression
-7
+ 32x + 240 in factored form when interpreting this
situation
Factorizing the quadratic equation gives
-7
+ 32x + 240
-7
+60x - 28x + 240
x×(-7x + 60) -4 ×(-7x + 60)
(x-4)×(-7x + 60)
The roots of the equation 4,-60/7
Advantages of writing the polynomial expression in factored
- we directly know the roots
- we can easily draw the graph of the quadratic