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Algebraic Expressions — Maths STD 6 — Question

Maharashtra BoardEnglish MediumSTD 6MathsAlgebraic Expressions3 Marks
Question
Simplify:
$-4x^2 + {(2x^2 - 3) - (4 - 3x^2)}$
✓

Answer

We have:
$-4x^2 + {(2x^2 - 3) - (4 - 3x^2)}$
$= -4x^2 + {2x^2 - 3 - 4 + 3x^2}$
[Removing grouping symbol]
$= -4x^2 + (5x^2 - 7)$
$= -4x^2 + 5x^2 - 7$
(Removing grouping symbol {})
$= x^2 - 7$

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