Default Title

Question (31)

QN0019149

Value of 3a(2b×3c) when a=2,b=1,c=4

(A) 72
(B) 48
(C) 144
(D) 24

Correct Answer: A

Explanation:

3×2×2×1×3×4=72

Link:

Report Error

Question (32)

QN0019150

If w=2, then 5w^2+6w equals

(A) 32
(B) 22
(C) 44
(D) 20

Correct Answer: A

Explanation:

Substitute w=2

Link:

Report Error

Question (33)

QN0019151

Correct expansion is

(A) (p+3)(q+2)=pq+6
(B) (p+3)(q+2)=pq+2p+3q+6
(C) (p+3)(q+2)=pq+5p+6
(D) (p+3)(q+2)=pq+3q

Correct Answer: B

Explanation:

FOIL method

Link:

Report Error

Question (34)

QN0019152

Products before combining terms in (a+2)(b+4)

(A) 2
(B) 3
(C) 4
(D) 5

Correct Answer: C

Explanation:

a×b terms = 4 products

Link:

Report Error

Question (35)

QN0019153

Which are unlike terms?

(A) 3x^2 and 5x^2
(B) 4ab and 7ab
(C) 2a^2b and 3ab^2
(D) 6m and 9m

Correct Answer: C

Explanation:

Different powers of variables

Link:

Report Error

Question (36)

QN0019154

25m^2+60mn+36n^2 is obtained from

(A) (5m+6n)^2
(B) (5m-6n)^2
(C) (25m+36n)^2
(D) (5m+6n)

Correct Answer: A

Explanation:

Identity (a+b)^2

Link:

Report Error

Question (37)

QN0019155

Always check before combining terms

(A) coefficients only
(B) signs only
(C) like terms
(D) variable names only

Correct Answer: C

Explanation:

Must be like terms

Link:

Report Error

Question (38)

QN0019156

Which simplifies to a single term?

(A) 4a^2+5a
(B) 2x^3+7x^3
(C) 3ab+4a^2b
(D) m+n

Correct Answer: B

Explanation:

Like terms combined

Link:

Report Error

Question (39)

QN0019157

Main purpose of “Mind the Mistake” is

(A) learn formulas
(B) memorize tables
(C) identify algebra errors
(D) geometry solving

Correct Answer: C

Explanation:

Error correction focus

Link:

Report Error

Question (40)

QN0019158

A correct simplification must

(A) change value
(B) keep value unchanged
(C) remove variables
(D) reduce to one term always

Correct Answer: B

Explanation:

Equivalent expressions preserve value

Link:

Report Error

Question (31)

Value of 3a(2b×3c) when a=2,b=1,c=4

Explanation:

Link:

Question (32)

If w=2, then 5w^2+6w equals

Explanation:

Link:

Question (33)

Correct expansion is

Explanation:

Link:

Question (34)

Products before combining terms in (a+2)(b+4)

Explanation:

Link:

Question (35)

Which are unlike terms?

Explanation:

Link:

Question (36)

25m^2+60mn+36n^2 is obtained from

Explanation:

Link:

Question (37)

Always check before combining terms

Explanation:

Link:

Question (38)

Which simplifies to a single term?

Explanation:

Link:

Question (39)

Main purpose of “Mind the Mistake” is

Explanation:

Link:

Question (40)

A correct simplification must

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY