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Simplify these expressions and find their valux = 4, a = -3 and b = -2:(i) 4x - 5- 7x + 8(ii) 3 (x + 2) + 5x - 7(iii) a +7+4(a - 5)(iv) 3(b + 2) + 56 - 7nce |
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Answer» 1)4*4-5-7*4+8=16-5-28+8-92)3(4+2)+5*4-7=18+20-7=31 here (1)4×4-5-7×4+8=16-5-28+8=9-36=-27 (ii)3(4+2)+5×4-7=12+6+20-7=18+13=31 hope this will help you like my answer and Mark it as best answer no 2 correct answer ha 1 )-92) 313)-284)-17 -9557) yiyituitt54679+568 1) 4(4)-5-7(4)+816-5-28+8-9 2) 3(4+2)+5(4)-73(6)+20-718+20-731 3) -3+7+4(-3-5)4+4(-8)-28 4) 3(-2+2)+5(-2)-73(0)-10-7-17 (1)4*4-5-7*4+8=16-5-28+8=24-32=(-8) 1)=12x-3,,(2)=-8×+9,,(3)=26,,(4)=2b+9 ans of all ? |
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