Mathematics
Simplification
Simplification (सरलीकरण) helps Class 9 Mathematics students reduce numerical and algebraic expressions to their simplest form while preserving their value. In this Common Questions topic, learners practise the correct order of operations, handling brackets, signs, fractions, powers, and like terms, and applying basic algebraic rules carefully. The topic also develops accuracy and step-by-step reasoning, helping students identify common errors and present clear solutions in routine calculations and introductory algebra.
Topic overviewटॉपिक का परिचय
Concept revisionअवधारणाओं का पुनरावर्तन
What is the simplest form of a + a + 2a after combining like terms?
All terms contain a to the first power, so add their coefficients: 1 + 1 + 2 = 4. Thus, a + a + 2a = 4a, and option B is correct.