algebraic expression and identities class 8

Subtract:  -6x²y from -10x²y

• 4x²y
• -4x²y
• 16x²y
• -16x²y

Tags

CCSS.HSA.APR.A.1

(x² - y²) × (x² + y²) = ______

• 2x² + 2y²
• x⁴ - y⁴
• x⁴ + y⁴
• 2x⁴

Tags

CCSS.HSA.APR.A.1

(x - 8) ( x - 8) = ______

• x² - 64
• x² + 64
• x² - 16x + 64
• x² + 16x + 64

Tags

CCSS.HSA.APR.A.1

If a + b = 5 and ab = 6, find a² + b².

• 13
• 12
• 10
• 11

Tags

CCSS.HSA.APR.C.4

What kind of expression is xyz?

• Monomial
• Binomial
• Trinomial
• None of the above

Is the number 65 a monomial ?

• TRUE
• FALSE

Is this 4/5 monomial ?

• TRUE
• FALSE

Can the following expression be a monomial (xyz + a) where 'a' is any whole number 

• For a = 1
• For a = -1
• For a = 0
• Not possible

Subtract x² – 3y² + 7y – 8 from 9x² – xy + y² + 5x – 3y

• 8x² – xy + 4y² + 5x - 10y – 8
• 10x² – xy - 2y² + 5x + 4y + 8
• 10x² – xy + 4y² + 5x - 10y - 8
• 8x² – xy + 4y² + 5x - 10y + 8

Tags

CCSS.7.EE.A.1

CCSS.7.EE.B.3

Add (a - b - c) ; (b - a - c) and (c - a - b)

• (a - b - c)
• (- a - b - c)
• (a + b - c)
• (-a - b + c)

Tags

CCSS.7.EE.A.1

CCSS.7.EE.B.3

CCSS.7.NS.A.1

CCSS.7.NS.A.3