Factoring Quadratic Trinomials, a=1
Authored by Charli Harbin
Mathematics
9th Grade
CCSS covered
Used 35+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Factor the trinomial:
x2 + 4x + 3
(x+1)(x+3)
(x-1)(x-3)
(x+4)(x+3)
(x+x)(1+3)
2.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Factor the trinomial:
x2 - 3x - 28
(x-28)(x-3)
(x-7)(x+4)
(x-25)(x-3)
(x+7)(x-4)
3.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Based on the method we learned in class, which of these puzzles can be used to find the values that split the middle term?
4.
FILL IN THE BLANKS QUESTION
2 mins • 10 pts
Factor the trinomial. Find the number that goes in both blank spaces.
x2 + 4x - 45
x2 + _x - 5x - 45
(x + _)(x - 5)
(a)
Answer explanation
Remember that the "number puzzle" we used in class helps you find what the two linear terms were BEFORE they had combined to become the middle term in the trinomial. When a=1, those two values are each in one of the factors you're trying to find.
5.
FILL IN THE BLANKS QUESTION
2 mins • 10 pts
Factor the trinomial. Find the number that goes in both blank spaces.
x2 + 11x + 24
x2 + _x + 8x + 24
(x + _)(x + 8)
(a)
Answer explanation
Remember that the "number puzzle" we used in class helps you find what the two linear terms were BEFORE they had combined to become the middle term in the trinomial. When a=1, those two values are each in one of the factors you're trying to find.
6.
FILL IN THE BLANKS QUESTION
2 mins • 10 pts
Factor the trinomial. Find the number that goes in both blank spaces.
(You might need to type in a negative number. Watch the signs carefully.)
x2 - 16x + 55
x2 + __x - 5x + 55
(x + __)(x - 5)
(a)
Answer explanation
Remember that the "number puzzle" we used in class helps you find what the two linear terms were BEFORE they had combined to become the middle term in the trinomial. When a=1, those two values are each in one of the factors you're trying to find.
7.
DROPDOWN QUESTION
2 mins • 10 pts
x2 + 9x - 52 is written in (a) form.
(x + 13)(x - 4) is written in (b) form.
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