MATH NS

Question 1

1. Simplify the following: (a) m 2 + 4 m + 3 m 2 + m m 2 +4m+3m 2 +m

Answer 1

Combine like terms: m 2 + 3 m 2 + 4 m + m = 4 m 2 + 5 m m 2 +3m 2 +4m+m=4m 2 +5m

Question 2

(b)5ab×(−3ac)5ab×(−3ac)

Answer 2

Multiply the coefficients and the variables: 5 × ( − 3 ) × a × a × b × c = − 15 a 2 b c 5×(−3)×a×a×b×c=−15a 2 bc

Question 3

(10x−3x)÷7

Answer 3

Simplify inside the parentheses first: 10 x − 3 x = 7 x 10x−3x=7x 7 x ÷ 7 = x 7x÷7=x