NJGPA Test 1

Which expression is equivalent to 3+(x+4)(x−4)?

• x²−13

• x²−29

• x²−35

• x²−80

Which expression is equivalent to (x⁵)−(7x²−7x³)?

• −4x³+14

• −4x⁵+7x³

• x⁵+7x³−7x²

• x⁵−7x³−7x²

Multiply the polynomials (x+3)(x−6). The product in the form ax²+bx+c what is the value of a, b, c?

• a=1, b=−3, c=−18

• a=1, b=−3, c=10

• a=1, b=3, c=−10

• a=1, b=3, c=10

Consider the polynomial expression: x⁴−6x²+9. Select all expressions that are equivalent to the given expression.

• (x²−3)(x²−3)

• (x²−3)²

• 8−3x⁴+x²+4+8−9x²

• −(−9+ 6x²−x⁴)

• (x³+x)−(6x+2x)+16

The polynomial 5−x(x²−x−2) can be written in the form ax³+bx²+cx+d, where a, b, c, and d are constants. What are the values of a, b, c, and d?

• a=−1, b=1, c=2, d=1

• a=-1, b=1, c=2, d=5

• a=−1, b=−1, c=2, d=5

• a=1, b=1, c=−2, d=5

Subtract (4x²−x+6) from (5x²+5x−8).

• 7x²+6x−14

• −x²+4x+2

• 7x²+4x−2

• x²+6x−14

The area, A, of a rectangular parking lot is given by the equation A=16s²+25. Jacob knows the area of the parking lot and wants to find s. Solve A=16s²+25 for s.

• s=±√(A−25)/16

• s=±√(A+25)/16

• s=±√(A−25)/4

• s=±√(A+25)/4

What is x?

• 15

• 23

• 2

• 92

Find the value of the angle marked x....

• 32

• 64

• 16

• 58