Goa Board (GBSHSE) - Class 8

Algebra, Geometry & Mensuration question bank (Mathematics (NMMS Goa Benchmark Class 8))

Practice 337 free Goa Board (GBSHSE) - Class 8 Mathematics (NMMS Goa Benchmark Class 8) - Algebra, Geometry & Mensuration questions with answers and step-by-step solutions.

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Q1.

Algebraic Identities: Which expansion is correct for 'Rational Numbers, Linear Equations and Exponents & Powers'?

(A)

$(a+b)^2 = a^2 + 2ab + b^2$ or $(a-b)(a+b) = a^2 - b^2$ (Rational Numbers, Linear Equations and Exponents & Powers)

(B)

$a^2 + b^2$ only

(C)

Arbitrary expression

(D)

None of these

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Q2.

Exponents & Powers: In 'Rational Numbers, Linear Equations and Exponents & Powers', what is the value using laws of exponents $a^m \times a^n = a^{m+n}$?

(A)

Accurate exponential simplified form (Rational Numbers, Linear Equations and Exponents & Powers)

(B)

$a^{{m \times n}}$

(C)

Zero

(D)

None of these

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