ye bta do koi plz......
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I hope it's help you..
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1. m^2 + 17mn - 84n^2
= m^2 + 21mn - 4mn - 84n^2
= m (m + 21n) - 4n (m + 21n)
= (m + 21n) (m - 4n)
2. 5x^2 + 16x + 3
= 5x^2 + 15x + x + 3
= 2x (x + 3) + 1 (x + 3)
= ( x + 3) + (2x + 1)
3. 6x^2 + 17x + 12
= 6x^2 +9x + 8x + 12
= 3x (2x + 3) + 4 (2x + 3)
= (2x + 3) (3x + 4)
4. 9x^2 + 18x + 8
= 9x^2 + 12x + 6x + 8
= 3x (3x + 4) + 2 (3x + 4)
= (3x + 4) (3x + 2)
= m^2 + 21mn - 4mn - 84n^2
= m (m + 21n) - 4n (m + 21n)
= (m + 21n) (m - 4n)
2. 5x^2 + 16x + 3
= 5x^2 + 15x + x + 3
= 2x (x + 3) + 1 (x + 3)
= ( x + 3) + (2x + 1)
3. 6x^2 + 17x + 12
= 6x^2 +9x + 8x + 12
= 3x (2x + 3) + 4 (2x + 3)
= (2x + 3) (3x + 4)
4. 9x^2 + 18x + 8
= 9x^2 + 12x + 6x + 8
= 3x (3x + 4) + 2 (3x + 4)
= (3x + 4) (3x + 2)
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