14. The two numbers are a and b. Here a>b.The Sum of two numbers is
12 and the product is 32.
A. Multiply with the help of formulae : (2x+3)(2x-7)
B. Find out the value of 2a²+2b².
C. Prove that, (a+2b)²–5b² = 176
Answers
Answered by
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Step-by-step explanation:
14. a + b = 12
a× b = 32
so, a = 8
b = 4
A. ( 2x+3) (2x-7)
=> 2x ( 2x -7) +3 ( 2x -7)
=> 4x² - 14x + 6x - 21
=> 4x² - 8x - 21
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