[BIL. 2ºESO] Algebraic Expressions v2

A

100

Write in algebraic language

"Maria's age 5 years ago"

x-5

200

What is the degree of the monomial 2xy³z²?

6

300

What is the degree of the polynomial 2xy³ + 6z - 4x³y² + 2z²y²

5

400

Calculate (7xy² - 3)(7xy²-3)

49x²y⁴ + 9 - 42xy²

500

Calculate:

(3x^3-2x^2+5)*(4x^2+3x-1)

12x^5+x^4-9x^3+22x^2+15x-5

B

100

Write in algebraic language:

"The triple of a number plus seven"

3x+7

200

What is the coefficient of the monomial xy³?

1

300

P(x) = 12xy² + 6xz - 4xy

Q(x) = 2xz - 5x²y +3xy²

Calculate P(x) + Q(x)

15xy²+8xz-4xy-5x²y

400

P(x) = 4x²-1

Q(x) = 6x²+x+1

Calculate 2·P(x) - Q(x)

2x²-x-3

500

Calculate:

(3x+2)*(x-3)+2x*(x-4)+5*(x^2-6x+3)

10x^2-45x+9

C

100

If x=3 and y=1, what is the numerical value of the algebraic expression: 3x²-5y?

22

200

Do the following operation:

3xy³ + 2yxy² - 5xy + 2xy³

7xy³-5xy

300

P(x) = 12xy² + 6xz - 4xy

Q(x) = 9xz - 5x²y +3xy²

Calculate P(x) - Q(x)

9xy²-3xz-4xy+5x²y

400

(3x+1)·(5x+2)

15x²+11x+2

500

Calculate:

4*(3/2x^2+5/4x)+1/3*(15-6x^2+9x)

4x^2+8x+5

D

100

Write in algebraic language:

"an odd number"

NOTE: Odd = Impar

2x+1 or 2x-1

200

What is the degree of the monomial -5xy

2

300

What is the degree of the polynomial 2x⁵y - 6xz³ + z³ - 5yx⁵ + 7xy ?

4

400

(x⁴-2x²+2)·(x²-2x+3)

x⁶ −2x⁵ + x⁴ + 4x³ − 4x² − 4x+6

500

10x*(3/5x^2-1/2x)+5/6*(12x^2-18x+6)

6x^3+5x^2-15x+5

E

100

If x=-2 and y=3, what is the numerical value of the algebraic expression: x⁴-6y

-2

200

Do the following operation:

2x²y² · 4xz² : 2xz

4x²y²z

300

P(x) = 3x³ + 6x - 3z

Calculate P(x) · (x-1)

3x⁴-3x³+6x²-6x-3xz+3z

400

Calculate (3x²+5y)(3x²+5y)

9x⁴+25y²+30x²y

500

Calculate:

(3a+7b)*(a-b)+6a*(a-5b+8)+ab-a^2

8a^2-7b^2-25ab+48a