Preparation for SA 3

Which of the following statements is NOT TRUE in identifying perfect square trinomials?

• It should be a trinomial.

• The middle term should be the product of the square roots of the first and last terms.

• The first and last terms must be perfect squares.

• The last term should always be positive.

Which of the following trinomials is NOT an example of perfect square trinomials?

• $a^2+6a+9$

• $m^2+18m+81$

• $x^2-10x+100$

• $c^2+24c+144$

What is the factored form of the given trinomial?

 $9x^2-24x+16$  

•  $\left(3x+16\right)^2$  

•  $\left(3x-16\right)^2$  

•  $\left(3x+4\right)^2$  

•  $\left(3x-4\right)^2$  

What is the factored form of the given trinomial?

 $4x^2+36x+81$  

•  $\left(2x+9\right)^2$  

•  $\left(2x-9\right)^2$  

•  $\left(4x+9\right)^2$  

•  $\left(4x-9\right)^2$  

What should be the last term of the given trinomial to make it a perfect square trinomial?

 $25x^2+20x+_{\ \ -}$  

•  $2$  

•  $4$  

•  $4x$  

•  $4x^2$  

Which of the following pairs of numbers have a product of 63 and a sum of -24?

• 21 and 3

• -21 and -3

• 9 and 7

• -9 and -7

Which of the following is a quadratic trinomial?

• $x+5x+4$

• $x^3+8x+12$

• $x^2-49$

• $x^2-5x+6$

What are the values of a, b, and c of the given trinomial?

 $2x^2-11x+5$  

•  $a=2x^{2\ },\ \ b=\ -11x\ ,\ \ c=5$  

•  $a=\ 2\ ,\ b=-11\ ,\ c=5$  

•  $a=2\ ,\ b=11\ ,\ c=5$  

•  $a=2x^{2\ },\ \ b=\ 11x\ ,\ \ c=5$  

Which of the following is a quadratic trinomial whose value of a is 1?

• $5x^2-11x+2$

• $x+2x^2-1$

• $2x^2+13x+6$

• $x^2-7x+12$

What is the factored form of $x^2+10x+24$  ?

•  $\left(x+5\right)\left(x+5\right)$  

•  $\left(x-12\right)\left(x+2\right)$  

•  $\left(x+6\right)\left(x+4\right)$  

•  $\left(x+8\right)\left(x+3\right)$