(ii) x2 - 22x + 40
(ii) x2 +13x - 48
(ii) m2 - 2m -63
(ii) 2x2 +11x +15
(ii) 3x2 - 10x +8
(ii) 5t2 +7t-6
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Answered by
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x² - 20x - 2x + 40
(x - 20)(x - 2)
x² + 16x - 3x - 48
(x + 16)(x - 3)
Answered by
1
Answer:
Q)x²-22x+40
=x²-20x-2x+40
=(x²-20x)-(2x+40)
=x(x-20)-2(x-20)
=(x-20)(x-2)
Q)x²+13x-48
=x²-3x+16x-48
=(x²-3x)+(16x-48)
=x(x-3)+16(x-3)
=(x-3)(x+16)
Q)m²-2m-63
=m²-9m+7m-63
=(m²-9m)+(7m-63)
=m(m-9)+7(m-9)
=(m-9)(m+7)
Q)2x²+11x+15
=2x²+6x+5x+15
=(2x²+6x)+(5x+15)
=2x(x+3)+5(x+3)
=(x-3)(2x+5)
Q)3x²-10x+8
=3x²-6x-4x+8
=(3x²-6x)-(4x+8)
=3x(x-2)-4(x-2)
=(x-2)(3x-4)
Q)5t²+7t-6
=5t²-3t+10t-6
=(5t²-3t)+(10t-6)
=t(5t-3)+2(5t-3)
=(5t-3)(t+2)
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