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Algebraic Expressions and Identities — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSAlgebraic Expressions and Identities1 Mark
MCQ
Add $9x^2 + 2xy - 3x$ and $3yx + 2xy - y.$
  • A
    $5xy.+x$
  • B
    $5yx - x$
  • ✓
    $9x^2 + 5xy - x - y$
  • D
    $9x^2+ 5xy + x - y$
✓

Answer

Correct option: C.
$9x^2 + 5xy - x - y$
C.  $9x^2 + 5xy - x - y$
Solution:
$\ \ \ \ 9\text{x}^{2} + 2\text{xy} - 3\text{x}\\ + \text{3xy} + 2\text{x} - \text{y}\\ \overline{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\\9\text{x}^{2} + 5\text{xy} - \text{x}- \text{y}$

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