Question

factorise 25p²-49m²


please answer ​

Answer 1

Answer:

25p²-49m²

( 5p – 7m )²

hence factories

Step-by-step explanation:

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Answer 2

(5p+7m) (5p-7m)

Step-by-step explanation:

using Identity a²-b²=(a+b)(a-b)

25p²-49m²

(5p+7m) (5p-7m)

(5p+7m) (5p-7m) are the factors of 25p²-49m²

MORE TO KNOW!

• (a+b)²=a²+b²+2ab
• (a-b)²=a²+b²-2ab
• a²– b²= (a + b)(a – b)
• (x + a)(x + b) = x²+ (a + b) x + ab.
• (a + b + c)2 = a² + b²+ c²+ 2ab + 2bc + 2ca.
• (a + b)³ = a³ + b³ + 3ab (a + b)