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Using distributive law
1) Simplify using distributive law: x² + (2x)² + 3x² + 2x² – (4x)² – 7x²
-17x²
-18x²
-13x²
-15x²
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Solution
Answer:
-13x²
Explanation:
x² + (2x)² + 3x² + 2x² – (4x)² – 7x²
Expanding Squares in the bracket (2x)² = 4 x², (4x)² = 16x²
And adding all the x² we get
= x² + 4x² + 3x² + 2x² - 16x² - 7x²
= -13x²
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