multiply the given pair of binomial:
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Answer:
1)x^2+ 6x+9
and here in all questions you have to use (a+b)^2. formula
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Step-by-step explanation:
(I) (x+3)×(x+3)
= x(x+3)+3(x+3)
= x²+3x+3x+9
= x²+6x+9
(II) (2y+5)×(2y+5)
= 2y(2y+5)+5(2y+5)
= 4y²+5y+10y+25
= 4y²+15y+25
(III) (2a-7)×(2a-7)
= 2a(2a-7)-7(2a-7)
= 4a²-7a-14a+49
= 4a²-21a+49
(iv) (3a-½)×(3a-½)
= 3a(3a-½)-½(3a-½)
= 9a-³/2a-³/2a-¼
= 9a- 6/2a-¼
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