The tray shows an expression in algebra tiles (see the key). Ravi takes away x² + 5x + 2 from it. Which expression is left?

Question

Accepted Answer

3x² − 2x + 3. The tray shows 4x^2 + 3x + 5. (4x^2 + 3x + 5) - (x^2 + 5x + 2) = 3x^2 - 2x + 3. There are only 3 x-tiles, so taking 5 leaves -2x, not +2x. Adding gives 5x^2 + 8x + 7.

The tray shows an expression in algebra tiles (see the key). Ravi takes away $x^{2} + 5 x + 2$ from it. Which expression is left?

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The tray shows an expression in algebra tiles (see the key). Ravi takes away x2+5x+2 from it. Which expression is left?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Adding and Subtracting Expressions practice

The tray shows an expression in algebra tiles (see the key). Ravi takes away $x^{2} + 5 x + 2$ from it. Which expression is left?