multiply (i+i) by (a-bi)
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Step-by-step explanation:
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given :-
h(x) = 6x² - 7x + 1
f(x) = 5x - 7
according to the question, we have to find the degree of the resultant polynomial after multiplying both the polynomials.
= (5x - 7)(6x² - 7x + 1)
= [(5x × 6x²) - (5x × 7x) + (5x × 1)] - [(7 × 6x²) - (7 × 7x) + (7 × 1)]
= (30x³ - 35x² + 5x) - (42x² - 49x + 7)
= 30x³ - 35x² - 42x² + 5x + 49x + 7
= 30x³ - 77x² + 54x + 7
we know that the degree of a polynomial is the highest power in the given polynomial.
here 3 is the highest power. so 3 is the degree of the polynomial.
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