1. What is the factored form of 4x
2 + 12x + 5? (1 point)
(2x + 4)(2x + 3)
(4x + 5)(x + 1)
(2x + 1)(2x + 5)
(4x + 1)(x + 5)
2. What is the factored form of 2x
2 + x – 3? (1 point)
(2x + 3)(x – 1)
(2x + 1)(x – 3)
(2x – 3)(x + 1)
(2x – 1)(x + 3)
3. The area of a rectangular swimming pool is 10x
2 – 19x – 15. The length of the pool is 5x + 3. What is the width
of the pool? (1 point)
2x – 18
2x – 5
5x – 5
5x – 22
4. What is the factored form of 16x
2 – 16x – 12? (1 point)
4(2x – 2)(2x + 2)
4(4x – 6)(x + 2)
4(2x – 2)(2x + 3)
4(2x – 3)(2x + 1)
5. What is the factored form of 3x
2 + 21x – 24? (1 point)
3(x + 8)(x – 1)
3(x + 6)(x – 3)
3(x + 5)(x – 3)
3(x + 7)(x – 3)
check my work
1.a
2.c
3.b
4.c
5.d
I can confirm it is
C
A
B
D
A
Full answers are C A B D A
FULL ANSWER ARE C, A, B, D, A
In this forum we type powers using the ^ to show exponents
e.g 4x^2 , not 4x2
anyway
1.
4x^2 + 12x + 5 = (2x+1)(2x+5)
2.
2x^2 + x - 3 = (x-1)(2x+3)
3. ok
4.
16x^2 - 16x - 12
= 4(4x^2 - 4x -3)
= 4(2x+1)(2x - 3) which is D)
5.
= 3(x^2 + 7x - 8)
= 3(x+8)(x-1) which is A)
looks like some serious review is needed
They are 100%%% CABDA
can confirm..
1) C or (2x+1)(2x+5)
2) A or (2x+3)(x-1)
3) B or 2x-5
4) D or 4(2x-3)(2x+1)
5) A or 3(x+8)(x-1)
c,a,b,d,a
c
a
b
d
a
b
C
A
B
D
A
5/5 yay
I suck at math.
1)C
2)A
3)B
4)D
5)A