L1 Equivalent Expressions Assignment

Use PEMDAS to evaluate the expression

 $7-\frac{24}{8}\times4+6$  

• 1

• -27

• 40

• -11

Use PEMDAS to evaluate the expression

 $\left(17-6\div2\right)+4\times3$  

• 17.5

• 54

• 26

• 28.5

Evaluate the expression

 $x^2-3\left(x+2\right)\$  when  $x=2$  

• 8

• -8

• 0

• 4

An algebraic expression of the sum or difference of two terms

• monomial

• binomial

• trinomial

• polynomial

Determine if  $a\left(b-6\right)\ and\ a^2+b+9\$  are EQUIVALENT if  $a=3\ and\ b=18$  

• Equivalent

• Not Equivalent

• spinach ice cream

Which of the following are polynomials of degree 4? Check all that apply.

• $x^2+4x-12$

• $5x^4-3x^3+8x^2+x-12$

• $4x^3-7x^2+x-2$

• $5x^4-1$

Evaluate $2\left(a-5\right)+2$  when a=15

In the expression $4a^3-6b^2+14c+20$ 

, the numbers 4, -6, and 14 represent ....

• Coefficients

• Exponents

• Variables

• Constants

If given the expression $7a^2+14x-6\$  where  $a=10$  and  $x=3$  , which example below shows how to correctly substitute the values of "a" and "x"?

•  $7\left(3\right)^2+14\left(10\right)-6$  

•  $7\left(10\right)^2+14\left(10\right)-6$  

•  $7\left(3\right)^2+14\left(3\right)-6$  

•  $7\left(10\right)^2+14\left(3\right)-6$  

If I were to substitute a=10 and x=3 into the expression $7\left(a\right)^2+14\left(x\right)-6$  , I would get  $7\left(10\right)^2+14\left(3\right)-6$  . What is the simplified value of this expression?

• 736

• 14,736

• 2,136

• 658