Question

Q.7 Simplify: x(x + y) - x (x - y)
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Answer 1

Answer:

2xy

Step-by-step explanation:

• x(x+y) - x(x-y)
• (x²+xy) - (x²-xy)
• x²+xy - x²+xy (sign of minus change to plus)
• x²-x²+xy+xy
• 2xy

Answer 2

Step-by-step explanation:

$x(x + y) - x(x - y) \\ = x {}^{2} + xy - x {}^{2} + xy \: \\ = 2xy$