(-7)²-1-¹×4×2-²-100+²+26=49-1×4×1/4-10000+26=-9926
(-7)² - 1⁻¹ x 4 x 2⁻² - 100 + ² + 26= 49 - (-1) x 4 x 1 - 96 + 26= 49 + 4 - 96 +26= -17