+18 I would really appreciate it if you guys could help me out as I am very bad at math!
1. (x - 7)(x + 5)
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2. (a - 5)(a - 1)
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3. (5a - 2)(2a - 3)
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4. (1 + 7x)(8 - x)
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5. (2x + 5)(3x-4)
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6. (x + 1/3)(x + 1/2)
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7. (3x^2 - 2)(2x^2 + 1)
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8. (-4a^2 + 5a)(-a - 1)
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9. (a^2 - a + 1)(a + 1)
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10. (a - 1/4)(1/4a + 1/5)
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Say thank you
