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Step-by-step explanation:
1. Like fractions are 7/3, 10/3 , unlike fractions are 15/2, 3/8 and 2/9. Mixed fractions are 2 1/2 , 10 3/2
2. 1569.16 = 1 x 10^3 + 5 x 10^2 + 6 x 10^1 + 9 x 10^0 + 1 x 10^-1 + 6 x 10^-2
3. (- 5)^3 = - 5 x – 5 x – 5 = - 125
4. 7/8 (Associative property of addition)
5. Two examples of trinomial are a^2 + 6a – 3, x^2 + 7x + 8 so a trinomial is a polynomial with three terms.
6. The order of the polynomial is 2.
7. We have 7x^2 + 5x + 2 + 5x^2 + x + 7 = 12x^2 + 6x + 9
8. So we get 7x^2 + 4x^2y – 7xy^2 – 5y^2 – (3x^2 + 4x^2y – 5xy^2 – y^2)
So we get 7x^2 + 4x^2y – 7xy^2 – 5y^2 – 3x^2 - 4x^2y + 5xy^2 + y^2
= 4x^2 – 2xy^2 – 4y^2
9. So (a + b)^2 = a^2 + 2ab + b^2
10. (3x + 5)(3x + 4)
So identity is (x + a)(x + b) = x^2 + (a + b)x + ab
(3x + 5)(3x + 4) = (3x)^2 + (5 + 4)3x + (5)(4)
= 9x^2 + 27x + 20
Reference link will be
https://brainly.in/question/6908568
https://brainly.in/question/17365066
Answer:
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Step-by-step explanation:
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